JavaArgsWriter.java

package de.cinovo.cloudconductor.server.util;

/*
 * #%L
 * cloudconductor-server
 * %%
 * Copyright (C) 2013 - 2014 Cinovo AG
 * %%
 * 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.
 * #L%
 */

import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Map;
import java.util.Map.Entry;

import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;

import de.taimos.springcxfdaemon.JaxRsComponent;

/**
 * Copyright 2013 Cinovo AG<br>
 * <br>
 * 
 * @author psigloch
 * 		
 */
@Provider
@Produces(de.cinovo.cloudconductor.api.MediaType.APPLICATION_JAVAARGS)
@JaxRsComponent
public class JavaArgsWriter implements MessageBodyWriter<Map<String, String>> {
	
	@Override
	public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
		return mediaType.getSubtype().equals("x-javaargs");
	}
	
	@Override
	public long getSize(Map<String, String> t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
		return -1;
	}
	
	@Override
	public void writeTo(Map<String, String> t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
		final PrintStream printStream = new PrintStream(entityStream, false, "UTF8");
		for (Entry<String, String> entry : t.entrySet()) {
			printStream.print("-D");
			printStream.print(entry.getKey());
			printStream.print("=\"");
			printStream.print(entry.getValue().replaceAll("\"", "\\\""));
			printStream.print("\" ");
		}
		printStream.flush();
		printStream.close();
	}
	
}