org.wicketstuff.mergedresources.resources.CompressedMergedCssResource.java Source code

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Here is the source code for org.wicketstuff.mergedresources.resources.CompressedMergedCssResource.java

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/**
 * Copyright 2010 Molindo GmbH
 *
 * 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.wicketstuff.mergedresources.resources;

import java.util.Locale;

import org.apache.wicket.Application;
import org.apache.wicket.util.resource.IResourceStream;
import org.wicketstuff.mergedresources.ResourceMount;
import org.wicketstuff.mergedresources.ResourceSpec;
import org.wicketstuff.mergedresources.preprocess.IResourcePreProcessor;
import org.wicketstuff.mergedresources.util.YuiCompressorUtil;

public class CompressedMergedCssResource extends CompressedMergedResource {

    private static final long serialVersionUID = 1L;

    /**
     * @deprecated use ResourceSpec[] instead of scopes[] and files[]
     */
    public CompressedMergedCssResource(Class<?> scope, final String path, final Locale locale, final String style,
            final Class<?>[] scopes, final String[] files, int cacheDuration) {
        this(scope, path, locale, style, ResourceSpec.toResourceSpecs(scopes, files), cacheDuration, null);
    }

    public CompressedMergedCssResource(Class<?> scope, final String path, final Locale locale, final String style,
            ResourceSpec[] specs, int cacheDuration, IResourcePreProcessor preProcessor) {
        super(scope, path, locale, style, specs, cacheDuration, preProcessor);
    }

    @Override
    protected IResourceStream newResourceStream(final Locale locale, final String style, final ResourceSpec[] specs,
            IResourcePreProcessor preProcessor) {
        return new MergedResourceStream(specs, locale, style, preProcessor) {
            private static final long serialVersionUID = 1L;

            // still using deprecated stripJavascriptCommentsAndWhitespace
            // property for CSS
            @SuppressWarnings("deprecation")
            @Override
            protected byte[] toContent(final byte[] content) {

                ICssCompressor compressor = ResourceMount.getCssCompressor(Application.get());
                if (compressor != null) {
                    return compressor.compress(content, ICssCompressor.UTF_8);
                } else if (Application.get().getResourceSettings()
                        // use the JS settings for CSS - deprecated as of WMR 3.1
                        .getStripJavascriptCommentsAndWhitespace()) {
                    return YuiCompressorUtil.compress(content, ICssCompressor.UTF_8);
                } else {
                    return content;
                }
            }

            @Override
            public String getContentType() {
                return "text/css";
            }
        };
    }
}