net.dontdrinkandroot.wicket.resource.FileResourceResponse.java Source code

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Here is the source code for net.dontdrinkandroot.wicket.resource.FileResourceResponse.java

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/**
 * Copyright (C) 2012-2014 Philip W. Sorst <philip@sorst.net>
 * and individual contributors as indicated
 * by the @authors tag.
 *
 * 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.dontdrinkandroot.wicket.resource;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

import org.apache.wicket.Application;
import org.apache.wicket.WicketRuntimeException;
import org.apache.wicket.request.resource.AbstractResource.ResourceResponse;
import org.apache.wicket.request.resource.AbstractResource.WriteCallback;
import org.apache.wicket.request.resource.IResource.Attributes;
import org.apache.wicket.util.time.Time;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class FileResourceResponse extends ResourceResponse {

    private final File file;

    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    public FileResourceResponse(final File file) {

        this.file = file;
        final String contentType = Application.get().getMimeType(this.file.getAbsolutePath());
        this.setContentType(contentType);
        this.setLastModified(Time.millis(this.file.lastModified()));
        this.setContentLength(this.file.length());
    }

    @Override
    public WriteCallback getWriteCallback() {

        return new WriteCallback() {

            @Override
            public void writeData(final Attributes attributes) {

                try {
                    this.writeStream(attributes, new FileInputStream(FileResourceResponse.this.file));
                } catch (final FileNotFoundException e) {
                    throw new WicketRuntimeException(e);
                } catch (IOException e) {
                    throw new WicketRuntimeException(e);
                }
            }
        };
    }

}