org.hyperledger.fabric.sdk.UpdateChannelConfiguration Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of fabric-sdk-java Show documentation
fabric-java-sdk
There is a newer version: 1.0.5
/*
 *
 *  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;

/**
 * A wrapper for the Hyperledger Channel update configuration
 */
public class UpdateChannelConfiguration {
    private byte[] configBytes = null;

    /**
     * The  constructor for the UpdateChannelConfiguration wrapper. You will
     * need to use the {@link Channel#updateChannelConfiguration(UpdateChannelConfiguration, byte[]...)} method to
     * populate the update channel configuration
     */
    public UpdateChannelConfiguration() {
    }

    /**
     * constructs a UpdateChannelConfiguration object with the actual configuration gotten from the file system
     *
     * @param configFile The file containing the channel configuration.
     * @throws IOException
     */
    public UpdateChannelConfiguration(File configFile) throws IOException {
        InputStream is = new FileInputStream(configFile);
        configBytes = IOUtils.toByteArray(is);
    }

    /**
     * constructs a UpdateChannelConfiguration object
     *
     * @param configAsBytes the byte array containing the serialized channel configuration
     */
    public UpdateChannelConfiguration(byte[] configAsBytes) {
        this.configBytes = configAsBytes;
    }

    /**
     * sets the UpdateChannelConfiguration from a byte array
     *
     * @param updateChannelConfigurationAsBytes the byte array containing the serialized channel configuration
     */
    public void setUpdateChannelConfiguration(byte[] updateChannelConfigurationAsBytes) {
        this.configBytes = updateChannelConfigurationAsBytes;
    }

    /**
     * @return the channel configuration serialized per protobuf and ready for inclusion into channel configuration
     */
    public byte[] getUpdateChannelConfigurationAsBytes() {
        return this.configBytes;
    }
}