ObjectWriter.java

/*
 * Copyright 2013, 2014 Deutsche Nationalbibliothek
 *
 * 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.culturegraph.mf.io;

import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import org.culturegraph.mf.framework.FluxCommand;
import org.culturegraph.mf.framework.annotations.Description;
import org.culturegraph.mf.framework.annotations.In;
import org.culturegraph.mf.framework.annotations.Out;
import org.culturegraph.mf.framework.annotations.ReturnsAvailableArguments;


/**
 * Writes objects to stdout or a file
 * @param <T> object type
 *
 * @author Christoph Böhme
 *
 */

@Description("Writes objects to stdout or a file")
@In(Object.class)
@Out(Void.class)
@FluxCommand("write")
public final class ObjectWriter<T> implements ConfigurableObjectWriter<T> {

	private static final String STDOUT = "stdout";
	private static final List<String> ARGUMENTS = Collections.unmodifiableList(Arrays.asList(STDOUT, "PATH"));

	private final ConfigurableObjectWriter<T> objectWriter;

	public ObjectWriter(final String destination) {
		if (STDOUT.equals(destination)) {
			objectWriter = new ObjectStdoutWriter<T>();
		} else {
			objectWriter = new ObjectFileWriter<T>(destination);
		}
	}

	@ReturnsAvailableArguments
	public static Collection<String> getArguments() {
		return ARGUMENTS;
	}
	@Override
	public String getEncoding() {
		return objectWriter.getEncoding();
	}

	@Override
	public void setEncoding(final String encoding) {
		objectWriter.setEncoding(encoding);
	}

	@Override
	public FileCompression getCompression() {
		return objectWriter.getCompression();
	}

	@Override
	public void setCompression(final FileCompression compression) {
		objectWriter.setCompression(compression);
	}

	@Override
	public void setCompression(final String compression) {
		objectWriter.setCompression(compression);
	}


	@Override
	public String getHeader() {
		return objectWriter.getHeader();
	}

	@Override
	public void setHeader(final String header) {
		objectWriter.setHeader(header);
	}

	@Override
	public String getFooter() {
		return objectWriter.getFooter();
	}

	@Override
	public void setFooter(final String footer) {
		objectWriter.setFooter(footer);
	}

	@Override
	public String getSeparator() {
		return objectWriter.getSeparator();
	}

	@Override
	public void setSeparator(final String separator) {
		objectWriter.setSeparator(separator);
	}

	@Override
	public void process(final T obj) {
		objectWriter.process(obj);
	}

	@Override
	public void resetStream() {
		objectWriter.resetStream();
	}

	@Override
	public void closeStream() {
		objectWriter.closeStream();
	}

}