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/*
* Copyright (c) OSGi Alliance (2000, 2013). All Rights Reserved.
*
* 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.osgi.framework;
/**
* A Framework exception used to indicate that a filter string has an invalid
* syntax.
*
* <p>
* An {@code InvalidSyntaxException} object indicates that a filter string
* parameter has an invalid syntax and cannot be parsed. See {@link Filter} for
* a description of the filter string syntax.
*
* <p>
* This exception conforms to the general purpose exception chaining mechanism.
*
* @author $Id$
*/
public class InvalidSyntaxException extends Exception {
static final long serialVersionUID = -4295194420816491875L;
/**
* The invalid filter string.
*/
private final String filter;
/**
* Creates an exception of type {@code InvalidSyntaxException}.
*
* <p>
* This method creates an {@code InvalidSyntaxException} object with the
* specified message and the filter string which generated the exception.
*
* @param msg The message.
* @param filter The invalid filter string.
*/
public InvalidSyntaxException(String msg, String filter) {
super(message(msg, filter));
this.filter = filter;
}
/**
* Creates an exception of type {@code InvalidSyntaxException}.
*
* <p>
* This method creates an {@code InvalidSyntaxException} object with the
* specified message and the filter string which generated the exception.
*
* @param msg The message.
* @param filter The invalid filter string.
* @param cause The cause of this exception.
* @since 1.3
*/
public InvalidSyntaxException(String msg, String filter, Throwable cause) {
super(message(msg, filter), cause);
this.filter = filter;
}
/**
* Return message string for super constructor.
*/
private static String message(String msg, String filter) {
if ((msg == null) || (filter == null) || msg.indexOf(filter) >= 0) {
return msg;
}
return msg + ": " + filter;
}
/**
* Returns the filter string that generated the
* {@code InvalidSyntaxException} object.
*
* @return The invalid filter string.
* @see BundleContext#getServiceReferences(Class, String)
* @see BundleContext#getServiceReferences(String, String)
* @see BundleContext#addServiceListener(ServiceListener,String)
*/
public String getFilter() {
return filter;
}
/**
* Returns the cause of this exception or {@code null} if no cause was set.
*
* @return The cause of this exception or {@code null} if no cause was set.
* @since 1.3
*/
@Override
public Throwable getCause() {
return super.getCause();
}
/**
* Initializes the cause of this exception to the specified value.
*
* @param cause The cause of this exception.
* @return This exception.
* @throws IllegalArgumentException If the specified cause is this
* exception.
* @throws IllegalStateException If the cause of this exception has already
* been set.
* @since 1.3
*/
@Override
public Throwable initCause(Throwable cause) {
return super.initCause(cause);
}
}
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