gov.nasa.jpl.nutch.phantomjs.PhantomJSWebClient.java Source code

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Here is the source code for gov.nasa.jpl.nutch.phantomjs.PhantomJSWebClient.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 gov.nasa.jpl.nutch.phantomjs;

import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.TimeoutException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.io.TemporaryFilesystem;

import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.phantomjs.PhantomJSDriver;
import org.openqa.selenium.phantomjs.PhantomJSDriverService;

public class PhantomJSWebClient {

    public static WebDriver getDriverForPage(String url) {
        long pageLoadTimout = 3;

        DesiredCapabilities caps = new DesiredCapabilities();
        caps.setJavascriptEnabled(true);
        caps.setCapability("takesScreenshot", false);

        WebDriver driver = null;
        try {
            driver = new PhantomJSDriver(caps);
            driver.manage().timeouts().pageLoadTimeout(pageLoadTimout, TimeUnit.SECONDS);
            driver.get(url);
        } catch (Exception e) {
            if (e instanceof TimeoutException) {
                System.out.println("PhantomJS WebDriver: Timeout Exception: Capturing whatever loaded so far...");
                return driver;
            }
            cleanUpDriver(driver);
            throw new RuntimeException(e);
        }

        return driver;
    }

    public static String getHTML(String url) {
        WebDriver driver = getDriverForPage(url);

        return getHTMLContent(driver);
    }

    public static String getHTMLContent(WebDriver driver) {
        try {
            String innerHtml = driver.findElement(By.tagName("body")).getAttribute("innerHTML");
            return innerHtml;
        } catch (Exception e) {
            TemporaryFilesystem.getDefaultTmpFS().deleteTemporaryFiles();
            throw new RuntimeException(e);
        } finally {
            cleanUpDriver(driver);
        }
    }

    public static void cleanUpDriver(WebDriver driver) {
        if (driver != null) {
            try {
                driver.close();
                driver.quit();
                TemporaryFilesystem.getDefaultTmpFS().deleteTemporaryFiles();
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    }

}