org.springframework.boot.devtools.livereload.ConnectionOutputStream Maven / Gradle / Ivy
/*
* Copyright 2012-2015 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.springframework.boot.devtools.livereload;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.springframework.util.FileCopyUtils;
/**
* {@link OutputStream} for a server connection.
*
* @author Phillip Webb
*/
class ConnectionOutputStream extends FilterOutputStream {
ConnectionOutputStream(OutputStream out) {
super(out);
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
this.out.write(b, off, len);
}
public void writeHttp(InputStream content, String contentType) throws IOException {
byte[] bytes = FileCopyUtils.copyToByteArray(content);
writeHeaders("HTTP/1.1 200 OK", "Content-Type: " + contentType,
"Content-Length: " + bytes.length, "Connection: close");
write(bytes);
flush();
}
public void writeHeaders(String... headers) throws IOException {
StringBuilder response = new StringBuilder();
for (String header : headers) {
response.append(header).append("\r\n");
}
response.append("\r\n");
write(response.toString().getBytes());
}
}