Migration to maven almost complete. At least everything builds and works
[utils] / crawler / kiss / src / main / java / org / wamblee / crawler / kiss / notification / MailNotifier.java
diff --git a/crawler/kiss/src/main/java/org/wamblee/crawler/kiss/notification/MailNotifier.java b/crawler/kiss/src/main/java/org/wamblee/crawler/kiss/notification/MailNotifier.java
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+/*
+ * Copyright 2006 the original author or authors.
+ * 
+ * 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.wamblee.crawler.kiss.notification;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Date;
+
+import javax.mail.internet.AddressException;
+import javax.mail.internet.InternetAddress;
+import javax.xml.transform.TransformerException;
+
+import org.apache.commons.mail.EmailException;
+import org.apache.commons.mail.HtmlEmail;
+import org.dom4j.Element;
+import org.wamblee.xml.XslTransformer;
+
+/**
+ * A notifier that uses SMTP to notify users by mail.
+ * 
+ */
+public class MailNotifier implements Notifier {
+
+    private String _from;
+
+    private String _to;
+
+    private String _subject;
+
+    private String _htmlXslt;
+
+    private String _textXslt;
+
+    private MailServer _server;
+    
+    private XslTransformer _transformer;
+
+    /**
+     * Constructs the notifier.
+     * 
+     * @param aFrom
+     *            Sender mail address to use.
+     * @param aTo
+     *            Recipient mail address to use.
+     * @param aSubject
+     *            Subject to use in the email.
+     * @param aHtmlXslt
+     *            XSLT file to transform the report into HTML.
+     * @param aTextXslt
+     *            XSLT file to transform the report into text.
+     * @param aServer
+     *            Mail server to use.
+     * @param aTransformer Transformer to use. 
+     */
+    public MailNotifier(String aFrom, String aTo, String aSubject,
+            String aHtmlXslt, String aTextXslt, MailServer aServer, XslTransformer aTransformer) {
+        _from = aFrom;
+        _to = aTo;
+        _subject = aSubject;
+        _htmlXslt = aHtmlXslt;
+        _textXslt = aTextXslt;
+        _server = aServer;
+        _transformer = aTransformer;
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.wamblee.crawler.kiss.Notifier#send(org.dom4j.Element)
+     */
+    public void send(Element aReport) throws NotificationException {
+        HtmlEmail mail = new HtmlEmail();
+        try {
+            mail.setFrom(_from);
+            mail
+                    .setTo(Arrays
+                            .asList(new InternetAddress[] { new InternetAddress(
+                                    _to) }));
+            mail.setSentDate(new Date());
+            mail.setSubject(_subject);
+
+            String htmlText = transformReport(aReport, _htmlXslt);
+            String plainText = transformReport(aReport, _textXslt);
+
+            mail.setHtmlMsg(htmlText);
+            mail.setTextMsg(plainText);
+
+            _server.send(mail);
+        } catch (EmailException e) {
+            throw new NotificationException(e.getMessage(), e);
+        } catch (TransformerException e) {
+            throw new NotificationException(e.getMessage(), e);
+        } catch (IOException e) {
+            throw new NotificationException(e.getMessage(), e);
+        } catch (AddressException e) {
+            throw new NotificationException(e.getMessage(), e);
+        }
+    }
+
+    /**
+     * Transforms a report into a destination format.
+     * 
+     * @param aReport
+     *            Report to transform
+     * @param aXslt
+     *            XSLT to use.
+     * @return Transformed result.
+     * @throws IOException
+     *             In case of IO problems.
+     * @throws TransformerException
+     *             In case of problems transforming.
+     */
+    private String transformReport(Element aReport, String aXslt)
+            throws IOException, TransformerException {
+        String reportXmlText = aReport.asXML();
+        return _transformer.textTransform(reportXmlText.getBytes(), _transformer.resolve(aXslt));
+    }
+    
+    /* (non-Javadoc)
+     * @see org.wamblee.crawler.kiss.notification.Notifier#asHtml(org.dom4j.Element)
+     */
+    public String asHtml(Element aReport) throws IOException, TransformerException {
+        return transformReport(aReport, _htmlXslt);
+    }
+    
+    /* (non-Javadoc)
+     * @see org.wamblee.crawler.kiss.notification.Notifier#asText(org.dom4j.Element)
+     */
+    public String asText(Element aReport) throws IOException, TransformerException {
+        return transformReport(aReport, _textXslt);
+    }
+}