org.riotfamily.linkcheck.HttpStatusChecker.java Source code

Introduction

Here is the source code for org.riotfamily.linkcheck.HttpStatusChecker.java

Source

/* 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.riotfamily.linkcheck;

import java.io.IOException;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpHead;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.riotfamily.common.util.FormatUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HttpStatusChecker {

    private Logger log = LoggerFactory.getLogger(HttpStatusChecker.class);

    private CloseableHttpClient client;

    public HttpStatusChecker() {
        RequestConfig config = RequestConfig.custom()
                .setConnectionRequestTimeout((int) FormatUtils.parseMillis("2s"))
                .setSocketTimeout((int) FormatUtils.parseMillis("5s")).setStaleConnectionCheckEnabled(true).build();

        client = HttpClients.custom().setDefaultRequestConfig(config).build();
    }

    private HttpRequestBase createMethod(String url) {
        try {
            return new HttpGetWithoutBody(url);
        } catch (IllegalArgumentException e) {
            return new HttpGetWithoutBody(FormatUtils.uriEscape(url));
        }
    }

    public boolean isOkay(BrokenLink link) {
        try {
            HttpRequestBase http = createMethod(link.getDestination());

            try {
                HttpResponse httpResponse = client.execute(http);
                int statusCode = httpResponse.getStatusLine().getStatusCode();
                if (log.isDebugEnabled()) {
                    if (log.isDebugEnabled()) {
                        log.debug("Check: " + link + " [" + statusCode + "]");
                    }
                }
                link.setStatusCode(statusCode);
                if (statusCode == HttpStatus.SC_OK) {
                    return true;
                } else {
                    link.setStatusText(httpResponse.getStatusLine().getReasonPhrase());
                }
            } catch (IOException e) {
                log.info(e.getMessage());
            } finally {
                http.releaseConnection();
            }
        } catch (IllegalArgumentException e) {
        } catch (IllegalStateException e) {
        }
        return false;
    }

    private static class HttpGetWithoutBody extends HttpHead {

        public HttpGetWithoutBody(String uri) {
            super(uri);
        }

        @Override
        public String getMethod() {
            return HttpGet.METHOD_NAME;
        }
    }

}