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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.asterix.hyracks.bootstrap;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Path;
import java.nio.file.Paths;

import org.apache.hyracks.api.application.IStateDumpHandler;
import org.apache.hyracks.api.lifecycle.ILifeCycleComponentManager;

public class AsterixStateDumpHandler implements IStateDumpHandler {
    private final String nodeId;
    private final Path dumpPath;
    private final ILifeCycleComponentManager lccm;

    public AsterixStateDumpHandler(String nodeId, String dumpPath, ILifeCycleComponentManager lccm) {
        this.nodeId = nodeId;
        this.dumpPath = Paths.get(dumpPath);
        this.lccm = lccm;
    }

    @Override
    public void dumpState(OutputStream os) throws IOException {
        dumpPath.toFile().mkdirs();
        File df = dumpPath.resolve(nodeId + "-" + System.currentTimeMillis() + ".dump").toFile();
        try (FileOutputStream fos = new FileOutputStream(df)) {
            lccm.dumpState(fos);
        }
        os.write(df.getAbsolutePath().getBytes("UTF-8"));
    }

}