org.hyperledger.fabric.sdk.BlockDeserializer Maven / Gradle / Ivy
/*
*
* Copyright 2016,2017 DTCC, Fujitsu Australia Software Technology, IBM - All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.hyperledger.fabric.sdk;
import java.lang.ref.WeakReference;
import java.util.Collections;
import java.util.Map;
import java.util.WeakHashMap;
import com.google.protobuf.ByteString;
import com.google.protobuf.InvalidProtocolBufferException;
import org.hyperledger.fabric.protos.common.Common;
import org.hyperledger.fabric.protos.common.Common.Block;
import org.hyperledger.fabric.protos.common.Common.BlockData;
class BlockDeserializer {
private final Block block;
private final Map> envelopes = Collections.synchronizedMap(new WeakHashMap>());
public Block getBlock() {
return block;
}
BlockDeserializer(Block block) {
this.block = block;
}
ByteString getPreviousHash() {
block.getHeader().getDataHash();
return block.getHeader().getPreviousHash();
}
ByteString getDataHash() {
return block.getHeader().getDataHash();
}
public long getNumber() {
return block.getHeader().getNumber();
}
BlockData getData() {
return block.getData();
}
EnvelopeDeserializer getData(int index) throws InvalidProtocolBufferException {
if (index >= getData().getDataCount()) {
return null;
}
WeakReference envelopeWeakReference = envelopes.get(index);
if (null != envelopeWeakReference) {
EnvelopeDeserializer ret = envelopeWeakReference.get();
if (null != ret) {
return ret;
}
}
EnvelopeDeserializer envelopeDeserializer = EnvelopeDeserializer.newInstance(getData().getData(index), getTransActionsMetaData()[index]);
envelopes.put(index, new WeakReference<>(envelopeDeserializer));
return envelopeDeserializer;
}
byte[] getTransActionsMetaData() {
return block.getMetadata().getMetadata(Common.BlockMetadataIndex.TRANSACTIONS_FILTER_VALUE).toByteArray();
}
}