org.apache.nutch.protocol.interactiveselenium.DigikeyHandler.java Source code

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Here is the source code for org.apache.nutch.protocol.interactiveselenium.DigikeyHandler.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 org.apache.nutch.protocol.interactiveselenium;

import java.io.UnsupportedEncodingException;
import java.lang.NumberFormatException;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.openqa.selenium.By;
import org.openqa.selenium.TimeoutException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.ui.ExpectedCondition;
import org.openqa.selenium.support.ui.WebDriverWait;
import org.openqa.selenium.JavascriptExecutor;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Handler for the site http://digikey.com.
 * @author Joey Hong
 */
public class DigikeyHandler implements InteractivePhantomJSHandler {
    public static final Logger LOG = LoggerFactory.getLogger(DigikeyHandler.class);

    @Override
    public String processDriver(WebDriver driver) {
        StringBuffer buffer = new StringBuffer();

        // Extract content 
        String content = driver.findElement(By.tagName("body")).getText();
        buffer.append(content).append("\n");

        WebElement pages = driver.findElement(By.xpath("//div[@class='paging-inner']"));
        if (pages == null) {
            return buffer.toString();
        }

        String lastPage = pages.findElement(By.xpath(".//a[@class='Last']")).getAttribute("href");

        int lastPageNum = 1;
        try {
            lastPageNum = Integer.parseInt(lastPage.substring(lastPage.lastIndexOf('/') + 1));
        } catch (NumberFormatException e) {
            // do nothing
        }
        for (int i = 2; i <= lastPageNum; i++) {
            buffer.append("<a href=\"").append(driver.getCurrentUrl()).append("/page/").append(i).append("\" />\n");
        }

        return buffer.toString();
    }

    @Override
    public boolean shouldProcessURL(String URL) {
        String pattern = "http://www.digikey.com/product-search/.+/.+/.+/.+";
        if (URL.matches(pattern) && !URL.contains("/page/")) {
            return true;
        }
        return false;
    }
}