Utils.java

/*
 * Copyright 2011 TaskDock, Inc.
 *
 * 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 org.versly.rest.wsdoc.impl;

import org.versly.rest.wsdoc.DocumentationRestApi;

import java.util.HashMap;
import java.util.Map;

public class Utils {
    public static final String SERIALIZED_RESOURCE_LOCATION = "org.versly.rest.wsdoc.web-service-api.ser";
    private static Map<String,String> templateStrings = new HashMap<String, String>();

    public static String joinPaths(String lhs, String rhs) {
        // Mike Rawlins 2013-03-15 Don't append slash if right hand side is empty
        if (rhs == null || rhs.length() == 0) {
            return lhs;
        }

        while (lhs.endsWith("/"))
            lhs = lhs.substring(0, lhs.length() - 1);

        while (rhs.startsWith("/"))
            rhs = rhs.substring(1);

        // By default JAX-RS and Spring URI template matching ignore the presence of trailing slashes.
        while (rhs.endsWith("/"))
            rhs = rhs.substring(0, rhs.length() - 1);

        return lhs + "/" + rhs;
    }

    public static void addTemplateValue(String key, String value) {
        templateStrings.put(key, value);
    }

    private static String getTemplateValue(String key) {
        String value = templateStrings.get(key);
        return value != null ? value : "";
    }

    public static String fillTemplate(String value) {
        if (value == null) return value;
        return value.replace(DocumentationRestApi.MOUNT_TEMPLATE,
                getTemplateValue(DocumentationRestApi.MOUNT_TEMPLATE))
                .replace(DocumentationRestApi.ID_TEMPLATE,
                        getTemplateValue(DocumentationRestApi.ID_TEMPLATE))
                .replace(DocumentationRestApi.TITLE_TEMPLATE,
                        getTemplateValue(DocumentationRestApi.TITLE_TEMPLATE))
                .replace(DocumentationRestApi.VERSION_TEMPLATE,
                        getTemplateValue(DocumentationRestApi.VERSION_TEMPLATE));
    }
}