org.vraptor.impl.result.DefaultHttpResult.java Source code

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Here is the source code for org.vraptor.impl.result.DefaultHttpResult.java

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/***
 * Copyright (c) 2009 Caelum - www.caelum.com.br/opensource
 * All rights reserved.
 *
 * 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.vraptor.impl.result;

import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;

import javax.servlet.http.HttpServletResponse;

import org.vraptor.result.HttpResult;
import org.vraptor.result.ResultException;
import org.vraptor.result.StatusResult;

import com.google.common.io.ByteStreams;
import com.google.common.io.CharStreams;

/**
 * Implementation that delegates to HttpServletResponse
 * @author Lucas Cavalcanti
 * @author Sergio Lopes
 */
public class DefaultHttpResult implements HttpResult {

    private final HttpServletResponse response;
    private final StatusResult status;

    public DefaultHttpResult(HttpServletResponse response, StatusResult status) {
        this.response = response;
        this.status = status;
    }

    public HttpResult addDateHeader(String name, long date) {
        response.addDateHeader(name, date);
        return this;
    }

    public HttpResult addHeader(String name, String value) {
        response.addHeader(name, value);
        return this;
    }

    public HttpResult addIntHeader(String name, int value) {
        response.addIntHeader(name, value);
        return this;
    }

    public void sendError(int statusCode) {
        try {
            response.sendError(statusCode);
        } catch (IOException e) {
            throw new ResultException("Error while setting status code", e);
        }

    }

    public void sendError(int statusCode, String message) {
        try {
            response.sendError(statusCode, message);
        } catch (IOException e) {
            throw new ResultException("Error while setting status code", e);
        }

    }

    public void setStatusCode(int statusCode) {
        response.setStatus(statusCode);
    }

    public void movedPermanentlyTo(String uri) {
        this.status.movedPermanentlyTo(uri);
    }

    public <T> T movedPermanentlyTo(final Class<T> controller) {
        return this.status.movedPermanentlyTo(controller);
    }

    public HttpResult body(String body) {
        try {
            response.getWriter().print(body);
        } catch (IOException e) {
            throw new ResultException("Couldn't write to response body", e);
        }
        return this;
    }

    public HttpResult body(InputStream body) {
        try {
            ByteStreams.copy(body, response.getOutputStream());
        } catch (IOException e) {
            throw new ResultException("Couldn't write to response body", e);
        }
        return this;
    }

    public HttpResult body(Reader body) {
        try {
            CharStreams.copy(body, response.getWriter());
        } catch (IOException e) {
            throw new ResultException("Couldn't write to response body", e);
        }
        return this;
    }
}