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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <drm/DrmMetadata.h>
     18 
     19 using namespace android;
     20 
     21 int DrmMetadata::getCount(void) const {
     22 	return mMetadataMap.size();
     23 }
     24 
     25 status_t DrmMetadata::put(const String8* key,
     26                           const char* value) {
     27     if((value != NULL) && (key != NULL)) {
     28         int length = strlen(value);
     29         char* charValue = new char[length + 1];
     30 
     31         memcpy(charValue, value, length);
     32         charValue[length] = '\0';
     33         mMetadataMap.add(*key, charValue);
     34     }
     35     return NO_ERROR;
     36 }
     37 
     38 String8 DrmMetadata::get(const String8& key) const {
     39     if (NULL != getValue(&key)) {
     40         return String8(getValue(&key));
     41     }
     42     else {
     43         return String8("");
     44     }
     45 }
     46 
     47 const char* DrmMetadata::getValue(const String8* key) const {
     48     if(key != NULL) {
     49         if (NAME_NOT_FOUND != mMetadataMap.indexOfKey(*key)) {
     50             return mMetadataMap.valueFor(*key);
     51         }
     52         else {
     53             return NULL;
     54         }
     55     } else {
     56         return NULL;
     57     }
     58 }
     59 
     60 const char* DrmMetadata::getAsByteArray(const String8* key) const {
     61     return getValue(key);
     62 }
     63 
     64 bool DrmMetadata::KeyIterator::hasNext() {
     65     return mIndex < mDrmMetadata->mMetadataMap.size();
     66 }
     67 
     68 const String8& DrmMetadata::KeyIterator::next() {
     69     const String8& key = mDrmMetadata->mMetadataMap.keyAt(mIndex);
     70     mIndex++;
     71     return key;
     72 }
     73 
     74 DrmMetadata::KeyIterator DrmMetadata::keyIterator() {
     75     return KeyIterator(this);
     76 }
     77 
     78 DrmMetadata::KeyIterator::KeyIterator(const DrmMetadata::KeyIterator& keyIterator) :
     79     mDrmMetadata(keyIterator.mDrmMetadata),
     80     mIndex(keyIterator.mIndex) {
     81     ALOGV("DrmMetadata::KeyIterator::KeyIterator");
     82 }
     83 
     84 DrmMetadata::KeyIterator& DrmMetadata::KeyIterator::operator=(const DrmMetadata::KeyIterator& keyIterator) {
     85     ALOGV("DrmMetadata::KeyIterator::operator=");
     86     mDrmMetadata = keyIterator.mDrmMetadata;
     87     mIndex = keyIterator.mIndex;
     88     return *this;
     89 }
     90 
     91 
     92 DrmMetadata::Iterator DrmMetadata::iterator() {
     93     return Iterator(this);
     94 }
     95 
     96 DrmMetadata::Iterator::Iterator(const DrmMetadata::Iterator& iterator) :
     97     mDrmMetadata(iterator.mDrmMetadata),
     98     mIndex(iterator.mIndex) {
     99     ALOGV("DrmMetadata::Iterator::Iterator");
    100 }
    101 
    102 DrmMetadata::Iterator& DrmMetadata::Iterator::operator=(const DrmMetadata::Iterator& iterator) {
    103     ALOGV("DrmMetadata::Iterator::operator=");
    104     mDrmMetadata = iterator.mDrmMetadata;
    105     mIndex = iterator.mIndex;
    106     return *this;
    107 }
    108 
    109 bool DrmMetadata::Iterator::hasNext() {
    110     return mIndex < mDrmMetadata->mMetadataMap.size();
    111 }
    112 
    113 String8 DrmMetadata::Iterator::next() {
    114     String8 value = String8(mDrmMetadata->mMetadataMap.editValueAt(mIndex));
    115     mIndex++;
    116     return value;
    117 }
    118