package org.apache.myfaces.tobago.internal.webapp;
/*
* 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.
*/
import org.apache.myfaces.tobago.internal.ajax.AjaxInternalUtils;
import org.apache.myfaces.tobago.internal.util.FastStringWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.faces.component.UIComponent;
import javax.faces.context.ResponseWriter;
import java.io.IOException;
import java.io.Writer;
public class JsonResponseWriter extends HtmlResponseWriter {
private static final Logger LOG = LoggerFactory.getLogger(JsonResponseWriter.class);
private Writer javascriptWriter;
private boolean javascriptMode;
public JsonResponseWriter(Writer writer, String contentType, String characterEncoding) {
super(writer, contentType, characterEncoding);
this.javascriptWriter = new FastStringWriter();
}
@Override
public void endJavascript() throws IOException {
javascriptMode = false;
}
@Override
public void startJavascript() throws IOException {
javascriptMode = true;
}
@Override
public void write(String string) throws IOException {
writeInternal(javascriptMode ? javascriptWriter : getWriter(), AjaxInternalUtils.encodeJavaScriptString(string));
}
@Override
public void writeJavascript(String script) throws IOException {
writeInternal(javascriptWriter, AjaxInternalUtils.encodeJavaScriptString(script));
}
public String getJavascript() {
return javascriptWriter.toString();
}
@Override
protected void startElementInternal(Writer writer, String name, UIComponent currentComponent)
throws IOException {
setComponent(currentComponent);
if (isStartStillOpen()) {
writer.write(">");
}
writer.write("<");
writer.write(name);
setStartStillOpen(true);
}
@Override
protected void endElementInternal(Writer writer, String name) throws IOException {
if (EMPTY_TAG.contains(name)) {
writer.write(">");
} else {
if (isStartStillOpen()) {
writer.write(">");
}
writer.write("</");
writer.write(name);
writer.write(">");
}
setStartStillOpen(false);
}
@Override
protected void closeOpenTag() throws IOException {
if (isStartStillOpen()) {
getWriter().write(">");
setStartStillOpen(false);
}
}
@Override
protected void writeAttributeInternal(Writer writer, String name, String value, boolean escape)
throws IOException {
if (!isStartStillOpen()) {
String trace = getCallingClassStackTraceElementString();
String error = "Cannot write attribute when start-tag not open. "
+ "name = '" + name + "' "
+ "value = '" + value + "' "
+ trace.substring(trace.indexOf('('));
LOG.error(error);
throw new IllegalStateException(error);
}
if (value != null) {
writer.write(' ');
writer.write(name);
writer.write("=\\\"");
if (escape) {
getHelper().writeAttributeValue(value);
} else {
writer.write(value);
}
writer.write("\\\"");
}
}
public ResponseWriter cloneWithWriter(final Writer originalWriter) {
return new JsonResponseWriter(
originalWriter, getContentType(), getCharacterEncoding());
}
@Override
public void startDocument() throws IOException {
}
@Override
public void endDocument() throws IOException {
}
}