com.oreilly.springdata.neo4j.CollectionPathMatcher.java Source code

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Here is the source code for com.oreilly.springdata.neo4j.CollectionPathMatcher.java

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/*
 * Copyright 2012 the original author or authors.
 *
 * 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 com.oreilly.springdata.neo4j;

import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeMatcher;
import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;

import java.util.Collection;

public class CollectionPathMatcher extends TypeSafeMatcher<Collection<Object>> {

    private String collectionPath;
    private Matcher<?> propertyMatcher;

    public CollectionPathMatcher(String collectionPath, Matcher<?> delegate) {
        this.collectionPath = collectionPath;
        this.propertyMatcher = delegate;
    }

    /* (non-Javadoc)
     * @see org.hamcrest.SelfDescribing#describeTo(org.hamcrest.Description)
     */
    @Override
    public void describeTo(Description description) {
        // TODO Auto-generated method stub

    }

    /* (non-Javadoc)
     * @see org.hamcrest.TypeSafeMatcher#matchesSafely(java.lang.Object)
     */
    @Override
    protected boolean matchesSafely(Collection<Object> item) {

        for (Object outer : item) {

            BeanWrapper wrapper = new BeanWrapperImpl(outer);
            Object property = wrapper.getPropertyValue(collectionPath);

            if (propertyMatcher.matches(property)) {
                return true;
            }
        }

        return false;
    }

    public static Matcher<Collection<Object>> hasElement(String path, Matcher<?> matcher) {
        return new CollectionPathMatcher(path, matcher);
    }
}