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The AspectJ matcher can be used for matching pointcuts independently of any AspectJ compilation or weaving steps. Most notably, this can be used by frameworks such as Spring AOP which utilise the @AspectJ pointcut syntax but implement aspect weaving in a way independent of AspectJ, e.g. using dynamic proxies.

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/* *******************************************************************
 * Copyright (c) 2004 IBM Corporation
 * All rights reserved.
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Public License v 2.0
 * which accompanies this distribution and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
 *
 * Contributors:
 *    Andy Clement IBM     initial implementation 30-May-2004
 * ******************************************************************/

package org.aspectj.bridge;

public class WeaveMessage extends Message {

	// Kinds of weaving message we can produce

	public static WeaveMessageKind WEAVEMESSAGE_DECLAREPARENTSIMPLEMENTS = new WeaveMessageKind(1,
			"Extending interface set for type '%1' (%2) to include '%3' (%4)");

	public static WeaveMessageKind WEAVEMESSAGE_ITD = new WeaveMessageKind(2, "Type '%1' (%2) has intertyped %3 from '%4' (%5)");

	// %7 is information like "[with runtime test]"
	public static WeaveMessageKind WEAVEMESSAGE_ADVISES = new WeaveMessageKind(3,
			"Join point '%1' in Type '%2' (%3) advised by %4 advice from '%5' (%6)%7");

	public static WeaveMessageKind WEAVEMESSAGE_DECLAREPARENTSEXTENDS = new WeaveMessageKind(4,
			"Setting superclass of type '%1' (%2) to '%3' (%4)");

	public static WeaveMessageKind WEAVEMESSAGE_SOFTENS = new WeaveMessageKind(5,
			"Softening exceptions in type '%1' (%2) as defined by aspect '%3' (%4)");

	public static WeaveMessageKind WEAVEMESSAGE_ANNOTATES = new WeaveMessageKind(6,
			"'%1' (%2) is annotated with %3 %4 annotation from '%5' (%6)");

	public static WeaveMessageKind WEAVEMESSAGE_MIXIN = new WeaveMessageKind(7, "Mixing interface '%1' (%2) into type '%3' (%4)");

	public static WeaveMessageKind WEAVEMESSAGE_REMOVES_ANNOTATION = new WeaveMessageKind(6,
			"'%1' (%2) has had %3 %4 annotation removed by '%5' (%6)");

	private String affectedtypename;
	private String aspectname;

	// private ctor - use the static factory method
	private WeaveMessage(String message, String affectedtypename, String aspectname) {
		super(message, IMessage.WEAVEINFO, null, null);
		this.affectedtypename = affectedtypename;
		this.aspectname = aspectname;
	}

	/**
	 * Static helper method for constructing weaving messages.
	 *
	 * @param kind what kind of message (e.g. declare parents)
	 * @param inserts inserts for the message (inserts are marked %n in the message)
	 * @return new weaving message
	 */
	public static WeaveMessage constructWeavingMessage(WeaveMessageKind kind, String[] inserts) {
		StringBuilder str = new StringBuilder(kind.getMessage());
		int pos = -1;
		while ((pos = new String(str).indexOf("%")) != -1) {
			int n = Character.getNumericValue(str.charAt(pos + 1));
			str.replace(pos, pos + 2, inserts[n - 1]);
		}
		return new WeaveMessage(str.toString(), null, null);
	}

	/**
	 * Static helper method for constructing weaving messages.
	 *
	 * @param kind what kind of message (e.g. declare parents)
	 * @param inserts inserts for the message (inserts are marked %n in the message)
	 * @param affectedtypename the type which is being advised/declaredUpon
	 * @param aspectname the aspect that defined the advice or declares
	 * @return new weaving message
	 */
	public static WeaveMessage constructWeavingMessage(WeaveMessageKind kind, String[] inserts, String affectedtypename,
			String aspectname) {
		StringBuilder str = new StringBuilder(kind.getMessage());
		int pos = -1;
		while ((pos = new String(str).indexOf("%")) != -1) {
			int n = Character.getNumericValue(str.charAt(pos + 1));
			str.replace(pos, pos + 2, inserts[n - 1]);
		}
		return new WeaveMessage(str.toString(), affectedtypename, aspectname);
	}

	/**
	 * @return Returns the aspectname.
	 */
	public String getAspectname() {
		return aspectname;
	}

	/**
	 * @return Returns the affectedtypename.
	 */
	public String getAffectedtypename() {
		return affectedtypename;
	}

	public static class WeaveMessageKind {

		// private int id;
		private String message;

		public WeaveMessageKind(int id, String message) {
			// this.id = id;
			this.message = message;
		}

		public String getMessage() {
			return message;
		}
	}
}