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/*
*
* Derby - Class org.apache.derbyTesting.functionTests.util.Derby
*
* 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.
*/
package org.apache.derbyTesting.junit;
import java.net.URL;
/**
* Derby related utility methods for the JUnit tests.
* The class assumes the tests are either being run
* from the build classes folder or from the standard
* jar files (or a subset of the standard jars).
* <BR>
* If the tests are being run from the classes then
* it is assumed all the functionality is available,
* otherwise the functionality will be driven from which
* jar files are on the classpath. E.g. if only
* derby.jar is on the classpath then the hasXXX() methods
* will return false except hasEmbedded().
*/
public class Derby {
/**
* Returns true if the embedded engine is available to the tests.
*/
public static boolean hasEmbedded()
{
// classes folder - assume all is available.
if (!SecurityManagerSetup.isJars)
return true;
return hasCorrectJar("/derby.jar",
"org.apache.derby.authentication.UserAuthenticator");
}
/**
* Returns true if the network server is available to the tests.
*/
public static boolean hasServer()
{
// DERBY-5864: The network server is not supported on J2ME.
if (JDBC.vmSupportsJSR169()) {
return false;
}
// classes folder - assume all is available.
if (!SecurityManagerSetup.isJars)
return true;
return hasCorrectJar("/derbynet.jar",
"org.apache.derby.drda.NetworkServerControl");
}
/**
* Returns true if the tools are available to the tests.
*/
public static boolean hasTools()
{
// classes folder - assume all is available.
if (!SecurityManagerSetup.isJars)
return true;
return hasCorrectJar("/derbytools.jar",
"org.apache.derby.tools.ij");
}
/**
* Returns true if the derby client is available to the tests.
*/
public static boolean hasClient()
{
// if we attempt to check on availability of the ClientDataSource with
// JSR169, attempts will be made to load classes not supported in
// that environment, such as javax.naming.Referenceable. See DERBY-2269.
if (JDBC.vmSupportsJSR169()) {
return false;
}
// classes folder - assume all is available.
if (!SecurityManagerSetup.isJars) {
return true;
}
return hasCorrectJar("/derbyclient.jar",
JDBC.vmSupportsJNDI() ?
"org.apache.derby.jdbc.ClientDataSource" :
"org.apache.derby.jdbc.BasicClientDataSource40");
}
private static boolean hasCorrectJar(String jarName, String className)
{
URL url = SecurityManagerSetup.getURL(className);
if (url == null)
return false;
return url.toExternalForm().endsWith(jarName);
}
}
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