io.undertow.js.StringReadHandler Maven / Gradle / Ivy
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* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 io.undertow.js;
import io.undertow.UndertowLogger;
import io.undertow.server.Connectors;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.AttachmentKey;
import io.undertow.util.SameThreadExecutor;
import io.undertow.util.StringReadChannelListener;
import java.io.IOException;
/**
* Handler that reads the entity body and attaches it to the exchange as a UTF-8 string
*
*
* @author Stuart Douglas
*/
public class StringReadHandler implements HttpHandler {
public static final AttachmentKey DATA = AttachmentKey.create(String.class);
private final HttpHandler next;
public StringReadHandler(HttpHandler next) {
this.next = next;
}
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
if(!exchange.isRequestComplete()) {
exchange.dispatch(SameThreadExecutor.INSTANCE, new Runnable() {
@Override
public void run() {
new StringReadChannelListener(exchange.getConnection().getBufferPool()) {
@Override
protected void stringDone(String string) {
exchange.putAttachment(DATA, string);
Connectors.executeRootHandler(next, exchange);
}
@Override
protected void error(IOException e) {
UndertowLogger.REQUEST_IO_LOGGER.ioException(e);
exchange.setResponseCode(500);
exchange.endExchange();
}
}.setup(exchange.getRequestChannel());
}
});
} else {
next.handleRequest(exchange);
}
}
}