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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2012-2013 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
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*/
package com.sun.enterprise.admin.remote.sse;
import com.sun.enterprise.admin.remote.reader.ProprietaryReader;
import com.sun.enterprise.admin.remote.reader.ProprietaryReaderFactory;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
/**
* Incoming SSE event.
*/
public class GfSseInboundEvent {
private String name = null;
private String id = null;
private ByteArrayOutputStream data = null;
GfSseInboundEvent() {
}
void setName(String name) {
this.name = name;
}
void setId(String id) {
this.id = id;
}
void addData(byte[] data) {
if(this.data == null) {
this.data = new ByteArrayOutputStream();
}
try {
this.data.write(data);
} catch (IOException e) {
this.data = null;
}
}
boolean isEmpty() {
return data == null;
}
/**
* Get the event name.
*
* @return event name or {@code null} if it is not present.
*/
public String getName() {
return name;
}
/**
* Get event data.
*
* @param messageType type of stored data content.
* @throws IOException when provided type can't be read.
*/
public T getData(final Class messageType, final String contentType) throws IOException {
final ProprietaryReader reader = ProprietaryReaderFactory.getReader(messageType, contentType);
if (reader != null) {
return reader.readFrom(new ByteArrayInputStream(stripLastLineBreak(data.toByteArray())), contentType);
} else {
//TODO: Throw IOException here
return null;
}
}
/**
* Get event data as {@link String}.
*
* @return event data de-serialized as string.
* @throws IOException when provided type can't be read.
*/
public String getData() throws IOException {
return getData(String.class, "text/plain");
}
@Override
public String toString() {
String s;
try {
s = getData();
} catch (IOException e) {
s = "";
}
return "InboundEvent{" +
"name='" + name + '\'' +
", id='" + id + '\'' +
", data=" + s +
'}';
}
/**
* String last line break from data. (Last line-break should not be considered as part of received data).
*
* @param data data
* @return updated byte array.
*/
private byte[] stripLastLineBreak(byte[] data) {
if((data.length >= 1) && (data[data.length - 1] == '\n')) {
byte[] newArray = new byte[data.length - 1];
System.arraycopy(data, 0, newArray, 0, data.length - 1);
data = newArray;
}
return data;
}
}