/*
 * Copyright [2013] [Cloud4SOA, www.cloud4soa.eu]
 *
 *
 * 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.
 */


/*
 * Copyright 2009-2012 the original author or authors.
 *
 * 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.cloudfoundry.client.lib.util;

import java.io.IOException;
import java.io.OutputStreamWriter;
import java.nio.charset.Charset;

import org.springframework.http.HttpOutputMessage;
import org.springframework.http.MediaType;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.util.FileCopyUtils;

/**
 * This is a class used to support uploading apps to legacy vcap installs like micro cf 1.1 and older
 */
public class StringHttpMessageConverterWithoutMediaType extends StringHttpMessageConverter {

	private boolean writeAcceptCharset = true;

	@Override
	public void setWriteAcceptCharset(boolean writeAcceptCharset) {
		this.writeAcceptCharset = writeAcceptCharset;
		super.setWriteAcceptCharset(writeAcceptCharset);
	}

	@Override
	protected MediaType getDefaultContentType(String t) {
		return null;
	}

	/*
	 * add extra null check for contentType
	 */
	@Override
	protected void writeInternal(String s, HttpOutputMessage outputMessage) throws IOException {
		if (writeAcceptCharset) {
			outputMessage.getHeaders().setAcceptCharset(getAcceptedCharsets());
		}
		MediaType contentType = outputMessage.getHeaders().getContentType();
		Charset charset = contentType != null && contentType.getCharSet() != null ? contentType.getCharSet() : DEFAULT_CHARSET;
		FileCopyUtils.copy(s, new OutputStreamWriter(outputMessage.getBody(), charset));
	}
}