org.apache.wicket.request.mapper.parameter.PageParametersEncoder.java Source code

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Here is the source code for org.apache.wicket.request.mapper.parameter.PageParametersEncoder.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.wicket.request.mapper.parameter;

import org.apache.wicket.request.Url;
import org.apache.wicket.request.Url.QueryParameter;
import org.apache.wicket.util.string.Strings;

/**
 * Simple encoder with direct indexed/named parameters mapping.
 * 
 * @author Matej Knopp
 */
public class PageParametersEncoder implements IPageParametersEncoder {
    /**
     * Construct.
     */
    public PageParametersEncoder() {
    }

    @Override
    public PageParameters decodePageParameters(final Url url) {
        PageParameters parameters = new PageParameters();

        int i = 0;
        for (String s : url.getSegments()) {
            parameters.set(i, s);
            ++i;
        }

        for (QueryParameter p : url.getQueryParameters()) {
            String parameterName = p.getName();
            if (Strings.isEmpty(parameterName) == false) {
                parameters.add(parameterName, p.getValue(), INamedParameters.Type.QUERY_STRING);
            }
        }

        return parameters.isEmpty() ? null : parameters;
    }

    @Override
    public Url encodePageParameters(final PageParameters pageParameters) {
        Url url = new Url();

        if (pageParameters != null) {
            for (int i = 0; i < pageParameters.getIndexedCount(); ++i) {
                url.getSegments().add(pageParameters.get(i).toString());
            }

            for (PageParameters.NamedPair pair : pageParameters.getAllNamed()) {
                QueryParameter param = new QueryParameter(pair.getKey(), pair.getValue());
                url.getQueryParameters().add(param);
            }
        }

        return url;
    }
}