org.jboss.ejb.client.UserTransactionID Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2017 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 org.jboss.ejb.client;
import java.io.UnsupportedEncodingException;
/**
* @deprecated Retained only for protocol compatibility.
*
* @author David M. Lloyd
*/
@Deprecated
public final class UserTransactionID extends TransactionID {
private static final long serialVersionUID = -791647046784989955L;
private final String nodeName;
private final int id;
UserTransactionID(final byte[] encodedForm) {
super(encodedForm);
// first byte is the header
if (encodedForm[0] != 0x01) {
throw wrongFormat();
}
final int totalEncodedLength = encodedForm.length;
// second byte of the encoded form is the length of the nodename bytes
final int nodeNameLength = encodedForm[1];
if (nodeNameLength <= 0) {
throw wrongFormat();
}
// next bytes are the nodename
try {
nodeName = new String(encodedForm, 2, nodeNameLength, "UTF-8");
} catch (UnsupportedEncodingException e) {
throw wrongFormat();
}
if (totalEncodedLength < nodeNameLength + 4) {
throw wrongFormat();
}
// the rest is the unique ID
//noinspection NumericOverflow
this.id = (encodedForm[nodeNameLength + 2] & 0xff) << 24
| (encodedForm[nodeNameLength + 3] & 0xff) << 16
| (encodedForm[nodeNameLength + 4] & 0xff) << 8
| encodedForm[nodeNameLength + 5] & 0xff;
}
public UserTransactionID(final String name, final int uniqueId) {
this(encode(name, uniqueId));
}
private static byte[] encode(final String name, final int uniqueId) {
final byte[] nameBytes;
try {
nameBytes = name.getBytes("UTF-8");
} catch (UnsupportedEncodingException e) {
throw wrongFormat();
}
final int length = nameBytes.length;
if (length > 255) {
throw wrongFormat();
}
final byte[] target = new byte[6 + length];
target[0] = 0x01;
target[1] = (byte) length;
System.arraycopy(nameBytes, 0, target, 2, length);
target[2 + length] = (byte) (uniqueId >> 24);
target[3 + length] = (byte) (uniqueId >> 16);
target[4 + length] = (byte) (uniqueId >> 8);
target[5 + length] = (byte) uniqueId;
return target;
}
private static IllegalArgumentException wrongFormat() {
return new IllegalArgumentException("Wrong transaction ID format");
}
/**
* Get the associated node name.
*
* @return the name
*/
public String getNodeName() {
return nodeName;
}
/**
* Get the unique ID.
*
* @return the unique ID
*/
public int getId() {
return id;
}
}