net.javacrumbs.springws.test.expression.WsTestXPathVariableResolver.java Source code

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/**
 * Copyright 2009-2010 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 net.javacrumbs.springws.test.expression;

import java.net.URI;
import java.util.Map;

import javax.xml.namespace.QName;
import javax.xml.xpath.XPathVariableResolver;

import net.javacrumbs.springws.test.context.WsTestContextHolder;

import org.springframework.beans.BeanWrapperImpl;

/**
 * Resolves XPath variables. Supports uri and context XPath variables.
 * @author Lukas Krecan
 *
 */
public class WsTestXPathVariableResolver implements XPathVariableResolver {
    private final URI uri;

    public WsTestXPathVariableResolver(URI uri) {
        super();
        this.uri = uri;
    }

    public Object resolveVariable(QName variableName) {
        String property = variableName.getLocalPart();
        property = normalizeContextVariable(property);
        return new BeanWrapperImpl(this).getPropertyValue(property);

    }

    /**
     * Converts context.property to context[property]
     * @param property
     * @return
     */
    String normalizeContextVariable(String property) {
        if (property.startsWith("context.")) {
            int endIndex = property.indexOf('.', 8);
            endIndex = endIndex != -1 ? endIndex : property.length();
            property = "context[" + property.substring(8, endIndex) + "]" + property.substring(endIndex);
        }
        return property;
    }

    public URI getUri() {
        return uri;
    }

    public Map<String, Object> getContext() {
        return WsTestContextHolder.getTestContext().getAttributeMap();
    }

}