com.github.jknack.handlebars.MapTemplateLoader.java Source code

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Here is the source code for com.github.jknack.handlebars.MapTemplateLoader.java

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/**
 * Copyright (c) 2012 Edgar Espina
 *
 * This file is part of Handlebars.java.
 *
 * 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.github.jknack.handlebars;

import static org.apache.commons.lang3.Validate.notEmpty;
import static org.apache.commons.lang3.Validate.notNull;

import java.io.FileNotFoundException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;

import com.github.jknack.handlebars.io.StringTemplateSource;
import com.github.jknack.handlebars.io.TemplateSource;
import com.github.jknack.handlebars.io.URLTemplateLoader;

/**
 * Template loader for testing.
 *
 * @author edgar.espina
 * @since 0.2.1
 */
public class MapTemplateLoader extends URLTemplateLoader {

    private Map<String, String> map;

    public MapTemplateLoader(final Map<String, String> map) {
        this.map = map;
    }

    public MapTemplateLoader() {
        this(new HashMap<String, String>());
    }

    public MapTemplateLoader define(final String name, final String content) {
        map.put(getPrefix() + name + getSuffix(), content);
        return this;
    }

    @Override
    public TemplateSource sourceAt(final String uri) throws FileNotFoundException {
        notNull(uri, "The uri is required.");
        notEmpty(uri.toString(), "The uri is required.");
        String location = resolve(normalize(uri));
        String text = map.get(location);
        if (text == null) {
            throw new FileNotFoundException(location);
        }
        return new StringTemplateSource(location, text);
    }

    @Override
    protected URL getResource(final String location) {
        throw new UnsupportedOperationException();
    }

}