com.swtxml.util.properties.PropertyMatcher.java Source code

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Here is the source code for com.swtxml.util.properties.PropertyMatcher.java

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/*******************************************************************************
 * Copyright (c) 2008 Ralf Ebert
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Ralf Ebert - initial API and implementation
 *******************************************************************************/
package com.swtxml.util.properties;

import java.util.Arrays;

import org.apache.commons.lang.ArrayUtils;

public class PropertyMatcher {

    public static final Class<?> ALL_CLASSES = null;
    public static final String ALL_PROPERTIES = null;

    private final Class<?> forClass;
    private final String propertyName;
    private final Class<?>[] targetTypes;

    public PropertyMatcher(Class<?>... propertyTypes) {
        this(ALL_CLASSES, ALL_PROPERTIES, propertyTypes);
    }

    public PropertyMatcher(Class<?> forClass, String propertyName, Class<?>... propertyTypes) {
        super();
        this.forClass = forClass;
        this.propertyName = propertyName;
        this.targetTypes = propertyTypes;
        for (Class<?> type : propertyTypes) {
            if (type == null) {
                throw new PropertiesException("propertyTypes may not be null");
            }
        }
    }

    public boolean match(Class<?> queryClass, String queryPropertyName, Class<?> queryTargetType) {
        if (forClass != null && !forClass.isAssignableFrom(queryClass)) {
            return false;
        }
        if (propertyName != null && !propertyName.equals(queryPropertyName)) {
            return false;
        }
        if (targetTypes.length > 0 && !ArrayUtils.contains(targetTypes, queryTargetType)) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        String classLabel = forClass != null ? forClass.getSimpleName() : "*";
        String propLabel = propertyName != null ? propertyName : "*";
        String targetTypesLabel = targetTypes.length > 0 ? Arrays.toString(targetTypes) : "*";
        return "PropertyMatcher[" + classLabel + "." + propLabel + " = " + targetTypesLabel + "]";
    }

}