org.hyperledger.fabric.sdk.ChannelConfiguration 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.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.commons.io.IOUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hyperledger.fabric.sdk.exception.InvalidArgumentException;
import static java.lang.String.format;
import static org.hyperledger.fabric.sdk.helper.Utils.toHexString;
/**
* A wrapper for the Hyperledger Channel configuration
*/
public class ChannelConfiguration {
private static final Log logger = LogFactory.getLog(ChannelConfiguration.class);
private static final boolean IS_TRACE_LEVEL = logger.isTraceEnabled();
private byte[] configBytes = null;
/**
* The null constructor for the ChannelConfiguration wrapper. You will
* need to use the {@link #setChannelConfiguration(byte[])} method to
* populate the channel configuration
*/
public ChannelConfiguration() {
}
/**
* constructs a ChannelConfiguration object with the actual configuration gotten from the file system
*
* @param configFile The file containing the channel configuration.
* @throws IOException
*/
public ChannelConfiguration(File configFile) throws IOException, InvalidArgumentException {
if (configFile == null) {
throw new InvalidArgumentException("ChannelConfiguration configFile must be non-null");
}
logger.trace(format("Creating ChannelConfiguration from file %s", configFile.getAbsolutePath()));
try (InputStream is = new FileInputStream(configFile)) {
configBytes = IOUtils.toByteArray(is);
}
}
/**
* constructs a ChannelConfiguration object
*
* @param configAsBytes the byte array containing the serialized channel configuration
*/
public ChannelConfiguration(byte[] configAsBytes) throws InvalidArgumentException {
if (configAsBytes == null) {
throw new InvalidArgumentException("ChannelConfiguration configAsBytes must be non-null");
}
logger.trace("Creating ChannelConfiguration from bytes");
this.configBytes = configAsBytes;
}
/**
* sets the ChannelConfiguration from a byte array
*
* @param channelConfigurationAsBytes the byte array containing the serialized channel configuration
*/
public void setChannelConfiguration(byte[] channelConfigurationAsBytes) throws InvalidArgumentException {
if (channelConfigurationAsBytes == null) {
throw new InvalidArgumentException("ChannelConfiguration channelConfigurationAsBytes must be non-null");
}
logger.trace("Creating setChannelConfiguration from bytes");
this.configBytes = channelConfigurationAsBytes;
}
/**
* @return the channel configuration serialized per protobuf and ready for inclusion into channel configuration
*/
public byte[] getChannelConfigurationAsBytes() {
if (configBytes == null) {
logger.error("ChannelConfiguration configBytes is null!");
} else if (IS_TRACE_LEVEL) {
logger.trace(format("getChannelConfigurationAsBytes: %s", toHexString(configBytes)));
}
return configBytes;
}
}