672 lines
23 KiB
C++
672 lines
23 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// #define LOG_NDEBUG 0
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#define LOG_TAG "MtpDeviceJNI"
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#include "utils/Log.h"
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#include <stdio.h>
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#include <assert.h>
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#include <limits.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "jni.h"
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#include "JNIHelp.h"
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#include "android_runtime/AndroidRuntime.h"
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#include "private/android_filesystem_config.h"
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#include "MtpTypes.h"
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#include "MtpDevice.h"
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#include "MtpDeviceInfo.h"
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#include "MtpStorageInfo.h"
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#include "MtpObjectInfo.h"
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using namespace android;
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// ----------------------------------------------------------------------------
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static jfieldID field_context;
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jclass clazz_deviceInfo;
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jclass clazz_storageInfo;
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jclass clazz_objectInfo;
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jmethodID constructor_deviceInfo;
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jmethodID constructor_storageInfo;
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jmethodID constructor_objectInfo;
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// MtpDeviceInfo fields
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static jfieldID field_deviceInfo_manufacturer;
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static jfieldID field_deviceInfo_model;
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static jfieldID field_deviceInfo_version;
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static jfieldID field_deviceInfo_serialNumber;
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// MtpStorageInfo fields
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static jfieldID field_storageInfo_storageId;
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static jfieldID field_storageInfo_maxCapacity;
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static jfieldID field_storageInfo_freeSpace;
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static jfieldID field_storageInfo_description;
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static jfieldID field_storageInfo_volumeIdentifier;
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// MtpObjectInfo fields
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static jfieldID field_objectInfo_handle;
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static jfieldID field_objectInfo_storageId;
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static jfieldID field_objectInfo_format;
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static jfieldID field_objectInfo_protectionStatus;
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static jfieldID field_objectInfo_compressedSize;
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static jfieldID field_objectInfo_thumbFormat;
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static jfieldID field_objectInfo_thumbCompressedSize;
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static jfieldID field_objectInfo_thumbPixWidth;
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static jfieldID field_objectInfo_thumbPixHeight;
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static jfieldID field_objectInfo_imagePixWidth;
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static jfieldID field_objectInfo_imagePixHeight;
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static jfieldID field_objectInfo_imagePixDepth;
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static jfieldID field_objectInfo_parent;
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static jfieldID field_objectInfo_associationType;
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static jfieldID field_objectInfo_associationDesc;
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static jfieldID field_objectInfo_sequenceNumber;
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static jfieldID field_objectInfo_name;
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static jfieldID field_objectInfo_dateCreated;
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static jfieldID field_objectInfo_dateModified;
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static jfieldID field_objectInfo_keywords;
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#ifdef HAVE_ANDROID_OS
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MtpDevice* get_device_from_object(JNIEnv* env, jobject javaDevice)
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{
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return (MtpDevice*)env->GetIntField(javaDevice, field_context);
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}
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static void checkAndClearExceptionFromCallback(JNIEnv* env, const char* methodName) {
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if (env->ExceptionCheck()) {
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LOGE("An exception was thrown by callback '%s'.", methodName);
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LOGE_EX(env);
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env->ExceptionClear();
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}
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}
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#endif // HAVE_ANDROID_OS
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// ----------------------------------------------------------------------------
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static jboolean
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android_mtp_MtpDevice_open(JNIEnv *env, jobject thiz, jstring deviceName, jint fd)
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{
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#ifdef HAVE_ANDROID_OS
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LOGD("open\n");
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const char *deviceNameStr = env->GetStringUTFChars(deviceName, NULL);
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if (deviceNameStr == NULL) {
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return false;
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}
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MtpDevice* device = MtpDevice::open(deviceNameStr, fd);
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env->ReleaseStringUTFChars(deviceName, deviceNameStr);
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if (device)
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env->SetIntField(thiz, field_context, (int)device);
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return (device != NULL);
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#endif
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}
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static void
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android_mtp_MtpDevice_close(JNIEnv *env, jobject thiz)
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{
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#ifdef HAVE_ANDROID_OS
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LOGD("close\n");
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MtpDevice* device = get_device_from_object(env, thiz);
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if (device) {
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device->close();
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delete device;
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env->SetIntField(thiz, field_context, 0);
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}
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#endif
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}
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static jobject
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android_mtp_MtpDevice_get_device_info(JNIEnv *env, jobject thiz)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (!device) {
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LOGD("android_mtp_MtpDevice_get_device_info device is null");
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return NULL;
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}
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MtpDeviceInfo* deviceInfo = device->getDeviceInfo();
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if (!deviceInfo) {
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LOGD("android_mtp_MtpDevice_get_device_info deviceInfo is null");
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return NULL;
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}
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jobject info = env->NewObject(clazz_deviceInfo, constructor_deviceInfo);
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if (info == NULL) {
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LOGE("Could not create a MtpDeviceInfo object");
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delete deviceInfo;
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return NULL;
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}
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if (deviceInfo->mManufacturer)
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env->SetObjectField(info, field_deviceInfo_manufacturer,
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env->NewStringUTF(deviceInfo->mManufacturer));
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if (deviceInfo->mModel)
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env->SetObjectField(info, field_deviceInfo_model,
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env->NewStringUTF(deviceInfo->mModel));
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if (deviceInfo->mVersion)
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env->SetObjectField(info, field_deviceInfo_version,
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env->NewStringUTF(deviceInfo->mVersion));
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if (deviceInfo->mSerial)
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env->SetObjectField(info, field_deviceInfo_serialNumber,
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env->NewStringUTF(deviceInfo->mSerial));
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delete deviceInfo;
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return info;
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#else
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return NULL;
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#endif
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}
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static jintArray
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android_mtp_MtpDevice_get_storage_ids(JNIEnv *env, jobject thiz)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (!device)
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return NULL;
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MtpStorageIDList* storageIDs = device->getStorageIDs();
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if (!storageIDs)
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return NULL;
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int length = storageIDs->size();
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jintArray array = env->NewIntArray(length);
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// FIXME is this cast safe?
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env->SetIntArrayRegion(array, 0, length, (const jint *)storageIDs->array());
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delete storageIDs;
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return array;
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#else
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return NULL;
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#endif
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}
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static jobject
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android_mtp_MtpDevice_get_storage_info(JNIEnv *env, jobject thiz, jint storageID)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (!device)
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return NULL;
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MtpStorageInfo* storageInfo = device->getStorageInfo(storageID);
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if (!storageInfo)
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return NULL;
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jobject info = env->NewObject(clazz_storageInfo, constructor_storageInfo);
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if (info == NULL) {
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LOGE("Could not create a MtpStorageInfo object");
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delete storageInfo;
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return NULL;
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}
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if (storageInfo->mStorageID)
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env->SetIntField(info, field_storageInfo_storageId, storageInfo->mStorageID);
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if (storageInfo->mMaxCapacity)
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env->SetLongField(info, field_storageInfo_maxCapacity, storageInfo->mMaxCapacity);
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if (storageInfo->mFreeSpaceBytes)
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env->SetLongField(info, field_storageInfo_freeSpace, storageInfo->mFreeSpaceBytes);
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if (storageInfo->mStorageDescription)
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env->SetObjectField(info, field_storageInfo_description,
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env->NewStringUTF(storageInfo->mStorageDescription));
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if (storageInfo->mVolumeIdentifier)
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env->SetObjectField(info, field_storageInfo_volumeIdentifier,
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env->NewStringUTF(storageInfo->mVolumeIdentifier));
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delete storageInfo;
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return info;
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#else
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return NULL;
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#endif
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}
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static jintArray
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android_mtp_MtpDevice_get_object_handles(JNIEnv *env, jobject thiz,
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jint storageID, jint format, jint objectID)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (!device)
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return NULL;
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MtpObjectHandleList* handles = device->getObjectHandles(storageID, format, objectID);
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if (!handles)
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return NULL;
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int length = handles->size();
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jintArray array = env->NewIntArray(length);
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// FIXME is this cast safe?
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env->SetIntArrayRegion(array, 0, length, (const jint *)handles->array());
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delete handles;
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return array;
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#else
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return NULL;
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#endif
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}
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static jobject
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android_mtp_MtpDevice_get_object_info(JNIEnv *env, jobject thiz, jint objectID)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (!device)
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return NULL;
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MtpObjectInfo* objectInfo = device->getObjectInfo(objectID);
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if (!objectInfo)
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return NULL;
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jobject info = env->NewObject(clazz_objectInfo, constructor_objectInfo);
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if (info == NULL) {
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LOGE("Could not create a MtpObjectInfo object");
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delete objectInfo;
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return NULL;
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}
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if (objectInfo->mHandle)
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env->SetIntField(info, field_objectInfo_handle, objectInfo->mHandle);
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if (objectInfo->mStorageID)
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env->SetIntField(info, field_objectInfo_storageId, objectInfo->mStorageID);
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if (objectInfo->mFormat)
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env->SetIntField(info, field_objectInfo_format, objectInfo->mFormat);
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if (objectInfo->mProtectionStatus)
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env->SetIntField(info, field_objectInfo_protectionStatus, objectInfo->mProtectionStatus);
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if (objectInfo->mCompressedSize)
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env->SetIntField(info, field_objectInfo_compressedSize, objectInfo->mCompressedSize);
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if (objectInfo->mThumbFormat)
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env->SetIntField(info, field_objectInfo_thumbFormat, objectInfo->mThumbFormat);
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if (objectInfo->mThumbCompressedSize)
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env->SetIntField(info, field_objectInfo_thumbCompressedSize, objectInfo->mThumbCompressedSize);
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if (objectInfo->mThumbPixWidth)
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env->SetIntField(info, field_objectInfo_thumbPixWidth, objectInfo->mThumbPixWidth);
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if (objectInfo->mThumbPixHeight)
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env->SetIntField(info, field_objectInfo_thumbPixHeight, objectInfo->mThumbPixHeight);
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if (objectInfo->mImagePixWidth)
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env->SetIntField(info, field_objectInfo_imagePixWidth, objectInfo->mImagePixWidth);
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if (objectInfo->mImagePixHeight)
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env->SetIntField(info, field_objectInfo_imagePixHeight, objectInfo->mImagePixHeight);
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if (objectInfo->mImagePixDepth)
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env->SetIntField(info, field_objectInfo_imagePixDepth, objectInfo->mImagePixDepth);
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if (objectInfo->mParent)
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env->SetIntField(info, field_objectInfo_parent, objectInfo->mParent);
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if (objectInfo->mAssociationType)
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env->SetIntField(info, field_objectInfo_associationType, objectInfo->mAssociationType);
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if (objectInfo->mAssociationDesc)
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env->SetIntField(info, field_objectInfo_associationDesc, objectInfo->mAssociationDesc);
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if (objectInfo->mSequenceNumber)
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env->SetIntField(info, field_objectInfo_sequenceNumber, objectInfo->mSequenceNumber);
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if (objectInfo->mName)
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env->SetObjectField(info, field_objectInfo_name, env->NewStringUTF(objectInfo->mName));
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if (objectInfo->mDateCreated)
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env->SetLongField(info, field_objectInfo_dateCreated, objectInfo->mDateCreated * 1000LL);
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if (objectInfo->mDateModified)
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env->SetLongField(info, field_objectInfo_dateModified, objectInfo->mDateModified * 1000LL);
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if (objectInfo->mKeywords)
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env->SetObjectField(info, field_objectInfo_keywords,
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env->NewStringUTF(objectInfo->mKeywords));
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delete objectInfo;
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return info;
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#else
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return NULL;
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#endif
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}
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struct get_object_callback_data {
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JNIEnv *env;
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jbyteArray array;
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};
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static bool get_object_callback(void* data, int offset, int length, void* clientData)
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{
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get_object_callback_data* cbData = (get_object_callback_data *)clientData;
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cbData->env->SetByteArrayRegion(cbData->array, offset, length, (jbyte *)data);
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return true;
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}
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static jbyteArray
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android_mtp_MtpDevice_get_object(JNIEnv *env, jobject thiz, jint objectID, jint objectSize)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (!device)
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return NULL;
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jbyteArray array = env->NewByteArray(objectSize);
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if (!array) {
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jniThrowException(env, "java/lang/OutOfMemoryError", NULL);
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return NULL;
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}
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get_object_callback_data data;
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data.env = env;
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data.array = array;
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if (device->readObject(objectID, get_object_callback, objectSize, &data))
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return array;
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#endif
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return NULL;
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}
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static jbyteArray
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android_mtp_MtpDevice_get_thumbnail(JNIEnv *env, jobject thiz, jint objectID)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (!device)
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return NULL;
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int length;
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void* thumbnail = device->getThumbnail(objectID, length);
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if (! thumbnail)
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return NULL;
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jbyteArray array = env->NewByteArray(length);
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env->SetByteArrayRegion(array, 0, length, (const jbyte *)thumbnail);
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free(thumbnail);
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return array;
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#else
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return NULL;
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#endif
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}
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static jboolean
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android_mtp_MtpDevice_delete_object(JNIEnv *env, jobject thiz, jint object_id)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (device)
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return device->deleteObject(object_id);
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else
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#endif
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return NULL;
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}
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static jlong
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android_mtp_MtpDevice_get_parent(JNIEnv *env, jobject thiz, jint object_id)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (device)
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return device->getParent(object_id);
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else
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#endif
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return -1;
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}
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static jlong
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android_mtp_MtpDevice_get_storage_id(JNIEnv *env, jobject thiz, jint object_id)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (device)
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return device->getStorageID(object_id);
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else
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#endif
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return -1;
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}
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static jboolean
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android_mtp_MtpDevice_import_file(JNIEnv *env, jobject thiz, jint object_id, jstring dest_path)
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{
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#ifdef HAVE_ANDROID_OS
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MtpDevice* device = get_device_from_object(env, thiz);
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if (device) {
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const char *destPathStr = env->GetStringUTFChars(dest_path, NULL);
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if (destPathStr == NULL) {
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return false;
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}
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bool result = device->readObject(object_id, destPathStr, AID_SDCARD_RW, 0664);
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env->ReleaseStringUTFChars(dest_path, destPathStr);
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return result;
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}
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#endif
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return false;
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}
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// ----------------------------------------------------------------------------
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static JNINativeMethod gMethods[] = {
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{"native_open", "(Ljava/lang/String;I)Z",
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(void *)android_mtp_MtpDevice_open},
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{"native_close", "()V", (void *)android_mtp_MtpDevice_close},
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{"native_get_device_info", "()Landroid/mtp/MtpDeviceInfo;",
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(void *)android_mtp_MtpDevice_get_device_info},
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{"native_get_storage_ids", "()[I", (void *)android_mtp_MtpDevice_get_storage_ids},
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{"native_get_storage_info", "(I)Landroid/mtp/MtpStorageInfo;",
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(void *)android_mtp_MtpDevice_get_storage_info},
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{"native_get_object_handles","(III)[I",
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(void *)android_mtp_MtpDevice_get_object_handles},
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{"native_get_object_info", "(I)Landroid/mtp/MtpObjectInfo;",
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(void *)android_mtp_MtpDevice_get_object_info},
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{"native_get_object", "(II)[B",(void *)android_mtp_MtpDevice_get_object},
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{"native_get_thumbnail", "(I)[B",(void *)android_mtp_MtpDevice_get_thumbnail},
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{"native_delete_object", "(I)Z", (void *)android_mtp_MtpDevice_delete_object},
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{"native_get_parent", "(I)J", (void *)android_mtp_MtpDevice_get_parent},
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{"native_get_storage_id", "(I)J", (void *)android_mtp_MtpDevice_get_storage_id},
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{"native_import_file", "(ILjava/lang/String;)Z",
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(void *)android_mtp_MtpDevice_import_file},
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};
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static const char* const kClassPathName = "android/mtp/MtpDevice";
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int register_android_mtp_MtpDevice(JNIEnv *env)
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{
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jclass clazz;
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LOGD("register_android_mtp_MtpDevice\n");
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clazz = env->FindClass("android/mtp/MtpDeviceInfo");
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if (clazz == NULL) {
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LOGE("Can't find android/mtp/MtpDeviceInfo");
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return -1;
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}
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constructor_deviceInfo = env->GetMethodID(clazz, "<init>", "()V");
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if (constructor_deviceInfo == NULL) {
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LOGE("Can't find android/mtp/MtpDeviceInfo constructor");
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return -1;
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}
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field_deviceInfo_manufacturer = env->GetFieldID(clazz, "mManufacturer", "Ljava/lang/String;");
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|
if (field_deviceInfo_manufacturer == NULL) {
|
|
LOGE("Can't find MtpDeviceInfo.mManufacturer");
|
|
return -1;
|
|
}
|
|
field_deviceInfo_model = env->GetFieldID(clazz, "mModel", "Ljava/lang/String;");
|
|
if (field_deviceInfo_model == NULL) {
|
|
LOGE("Can't find MtpDeviceInfo.mModel");
|
|
return -1;
|
|
}
|
|
field_deviceInfo_version = env->GetFieldID(clazz, "mVersion", "Ljava/lang/String;");
|
|
if (field_deviceInfo_version == NULL) {
|
|
LOGE("Can't find MtpDeviceInfo.mVersion");
|
|
return -1;
|
|
}
|
|
field_deviceInfo_serialNumber = env->GetFieldID(clazz, "mSerialNumber", "Ljava/lang/String;");
|
|
if (field_deviceInfo_serialNumber == NULL) {
|
|
LOGE("Can't find MtpDeviceInfo.mSerialNumber");
|
|
return -1;
|
|
}
|
|
clazz_deviceInfo = (jclass)env->NewGlobalRef(clazz);
|
|
|
|
clazz = env->FindClass("android/mtp/MtpStorageInfo");
|
|
if (clazz == NULL) {
|
|
LOGE("Can't find android/mtp/MtpStorageInfo");
|
|
return -1;
|
|
}
|
|
constructor_storageInfo = env->GetMethodID(clazz, "<init>", "()V");
|
|
if (constructor_storageInfo == NULL) {
|
|
LOGE("Can't find android/mtp/MtpStorageInfo constructor");
|
|
return -1;
|
|
}
|
|
field_storageInfo_storageId = env->GetFieldID(clazz, "mStorageId", "I");
|
|
if (field_storageInfo_storageId == NULL) {
|
|
LOGE("Can't find MtpStorageInfo.mStorageId");
|
|
return -1;
|
|
}
|
|
field_storageInfo_maxCapacity = env->GetFieldID(clazz, "mMaxCapacity", "J");
|
|
if (field_storageInfo_maxCapacity == NULL) {
|
|
LOGE("Can't find MtpStorageInfo.mMaxCapacity");
|
|
return -1;
|
|
}
|
|
field_storageInfo_freeSpace = env->GetFieldID(clazz, "mFreeSpace", "J");
|
|
if (field_storageInfo_freeSpace == NULL) {
|
|
LOGE("Can't find MtpStorageInfo.mFreeSpace");
|
|
return -1;
|
|
}
|
|
field_storageInfo_description = env->GetFieldID(clazz, "mDescription", "Ljava/lang/String;");
|
|
if (field_storageInfo_description == NULL) {
|
|
LOGE("Can't find MtpStorageInfo.mDescription");
|
|
return -1;
|
|
}
|
|
field_storageInfo_volumeIdentifier = env->GetFieldID(clazz, "mVolumeIdentifier", "Ljava/lang/String;");
|
|
if (field_storageInfo_volumeIdentifier == NULL) {
|
|
LOGE("Can't find MtpStorageInfo.mVolumeIdentifier");
|
|
return -1;
|
|
}
|
|
clazz_storageInfo = (jclass)env->NewGlobalRef(clazz);
|
|
|
|
clazz = env->FindClass("android/mtp/MtpObjectInfo");
|
|
if (clazz == NULL) {
|
|
LOGE("Can't find android/mtp/MtpObjectInfo");
|
|
return -1;
|
|
}
|
|
constructor_objectInfo = env->GetMethodID(clazz, "<init>", "()V");
|
|
if (constructor_objectInfo == NULL) {
|
|
LOGE("Can't find android/mtp/MtpObjectInfo constructor");
|
|
return -1;
|
|
}
|
|
field_objectInfo_handle = env->GetFieldID(clazz, "mHandle", "I");
|
|
if (field_objectInfo_handle == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mHandle");
|
|
return -1;
|
|
}
|
|
field_objectInfo_storageId = env->GetFieldID(clazz, "mStorageId", "I");
|
|
if (field_objectInfo_storageId == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mStorageId");
|
|
return -1;
|
|
}
|
|
field_objectInfo_format = env->GetFieldID(clazz, "mFormat", "I");
|
|
if (field_objectInfo_format == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mFormat");
|
|
return -1;
|
|
}
|
|
field_objectInfo_protectionStatus = env->GetFieldID(clazz, "mProtectionStatus", "I");
|
|
if (field_objectInfo_protectionStatus == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mProtectionStatus");
|
|
return -1;
|
|
}
|
|
field_objectInfo_compressedSize = env->GetFieldID(clazz, "mCompressedSize", "I");
|
|
if (field_objectInfo_compressedSize == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mCompressedSize");
|
|
return -1;
|
|
}
|
|
field_objectInfo_thumbFormat = env->GetFieldID(clazz, "mThumbFormat", "I");
|
|
if (field_objectInfo_thumbFormat == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mThumbFormat");
|
|
return -1;
|
|
}
|
|
field_objectInfo_thumbCompressedSize = env->GetFieldID(clazz, "mThumbCompressedSize", "I");
|
|
if (field_objectInfo_thumbCompressedSize == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mThumbCompressedSize");
|
|
return -1;
|
|
}
|
|
field_objectInfo_thumbPixWidth = env->GetFieldID(clazz, "mThumbPixWidth", "I");
|
|
if (field_objectInfo_thumbPixWidth == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mThumbPixWidth");
|
|
return -1;
|
|
}
|
|
field_objectInfo_thumbPixHeight = env->GetFieldID(clazz, "mThumbPixHeight", "I");
|
|
if (field_objectInfo_thumbPixHeight == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mThumbPixHeight");
|
|
return -1;
|
|
}
|
|
field_objectInfo_imagePixWidth = env->GetFieldID(clazz, "mImagePixWidth", "I");
|
|
if (field_objectInfo_imagePixWidth == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mImagePixWidth");
|
|
return -1;
|
|
}
|
|
field_objectInfo_imagePixHeight = env->GetFieldID(clazz, "mImagePixHeight", "I");
|
|
if (field_objectInfo_imagePixHeight == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mImagePixHeight");
|
|
return -1;
|
|
}
|
|
field_objectInfo_imagePixDepth = env->GetFieldID(clazz, "mImagePixDepth", "I");
|
|
if (field_objectInfo_imagePixDepth == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mImagePixDepth");
|
|
return -1;
|
|
}
|
|
field_objectInfo_parent = env->GetFieldID(clazz, "mParent", "I");
|
|
if (field_objectInfo_parent == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mParent");
|
|
return -1;
|
|
}
|
|
field_objectInfo_associationType = env->GetFieldID(clazz, "mAssociationType", "I");
|
|
if (field_objectInfo_associationType == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mAssociationType");
|
|
return -1;
|
|
}
|
|
field_objectInfo_associationDesc = env->GetFieldID(clazz, "mAssociationDesc", "I");
|
|
if (field_objectInfo_associationDesc == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mAssociationDesc");
|
|
return -1;
|
|
}
|
|
field_objectInfo_sequenceNumber = env->GetFieldID(clazz, "mSequenceNumber", "I");
|
|
if (field_objectInfo_sequenceNumber == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mSequenceNumber");
|
|
return -1;
|
|
}
|
|
field_objectInfo_name = env->GetFieldID(clazz, "mName", "Ljava/lang/String;");
|
|
if (field_objectInfo_name == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mName");
|
|
return -1;
|
|
}
|
|
field_objectInfo_dateCreated = env->GetFieldID(clazz, "mDateCreated", "J");
|
|
if (field_objectInfo_dateCreated == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mDateCreated");
|
|
return -1;
|
|
}
|
|
field_objectInfo_dateModified = env->GetFieldID(clazz, "mDateModified", "J");
|
|
if (field_objectInfo_dateModified == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mDateModified");
|
|
return -1;
|
|
}
|
|
field_objectInfo_keywords = env->GetFieldID(clazz, "mKeywords", "Ljava/lang/String;");
|
|
if (field_objectInfo_keywords == NULL) {
|
|
LOGE("Can't find MtpObjectInfo.mKeywords");
|
|
return -1;
|
|
}
|
|
clazz_objectInfo = (jclass)env->NewGlobalRef(clazz);
|
|
|
|
clazz = env->FindClass("android/mtp/MtpDevice");
|
|
if (clazz == NULL) {
|
|
LOGE("Can't find android/mtp/MtpDevice");
|
|
return -1;
|
|
}
|
|
field_context = env->GetFieldID(clazz, "mNativeContext", "I");
|
|
if (field_context == NULL) {
|
|
LOGE("Can't find MtpDevice.mNativeContext");
|
|
return -1;
|
|
}
|
|
|
|
return AndroidRuntime::registerNativeMethods(env,
|
|
"android/mtp/MtpDevice", gMethods, NELEM(gMethods));
|
|
}
|