Merge pull request #44 from spekr/master
Close streams in finally clause
This commit is contained in:
commit
7553eba073
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@ -1,18 +1,17 @@
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package com.redfin.sitemapgenerator;
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import org.xml.sax.SAXException;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.nio.charset.Charset;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.zip.GZIPOutputStream;
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import org.xml.sax.SAXException;
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abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGenerator<U,THIS>> {
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/** 50000 URLs per sitemap maximum */
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public static final int MAX_URLS_PER_SITEMAP = 50000;
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@ -69,7 +68,11 @@ abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGener
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if (!allowMultipleSitemaps) throw new RuntimeException("More than " + maxUrls + " urls, but allowMultipleSitemaps is false. Enable allowMultipleSitemaps to split the sitemap into multiple files with a sitemap index.");
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if (baseDir != null) {
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if (mapCount == 0) mapCount++;
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writeSiteMap();
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try {
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writeSiteMap();
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} catch(IOException ex) {
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throw new RuntimeException("Closing of stream failed.", ex);
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}
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mapCount++;
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urls.clear();
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}
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@ -105,9 +108,8 @@ abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGener
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* or write out one sitemap immediately.
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* @param urls the URLs to add to this sitemap
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* @return this
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* @throws MalformedURLException
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*/
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public THIS addUrls(String... urls) throws MalformedURLException {
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public THIS addUrls(String... urls) {
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for (String url : urls) addUrl(url);
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return getThis();
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}
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@ -117,16 +119,15 @@ abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGener
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* or else write out one sitemap immediately.
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* @param url the URL to add to this sitemap
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* @return this
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* @throws MalformedURLException
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*/
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public THIS addUrl(String url) throws MalformedURLException {
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public THIS addUrl(String url) {
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U sitemapUrl;
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try {
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sitemapUrl = renderer.getUrlClass().getConstructor(String.class).newInstance(url);
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return addUrl(sitemapUrl);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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return addUrl(sitemapUrl);
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}
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/** Add multiple URLs of the appropriate type to this sitemap, one at a time.
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@ -150,10 +151,10 @@ abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGener
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U sitemapUrl;
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try {
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sitemapUrl = renderer.getUrlClass().getConstructor(URL.class).newInstance(url);
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return addUrl(sitemapUrl);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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return addUrl(sitemapUrl);
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}
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@SuppressWarnings("unchecked")
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@ -168,7 +169,11 @@ abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGener
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public List<File> write() {
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if (finished) throw new RuntimeException("Sitemap already printed; you must create a new generator to make more sitemaps");
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if (!allowEmptySitemap && urls.isEmpty() && mapCount == 0) throw new RuntimeException("No URLs added, sitemap would be empty; you must add some URLs with addUrls");
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writeSiteMap();
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try {
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writeSiteMap();
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} catch (IOException ex) {
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throw new RuntimeException("Closing of streams has failed at some point.", ex);
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}
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finished = true;
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return outFiles;
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}
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@ -231,7 +236,7 @@ abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGener
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return outFile;
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}
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private void writeSiteMap() {
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private void writeSiteMap() throws IOException {
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if (baseDir == null) {
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throw new NullPointerException("To write to files, baseDir must not be null");
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}
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@ -244,8 +249,9 @@ abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGener
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}
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File outFile = new File(baseDir, fileNamePrefix+fileNameSuffix);
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outFiles.add(outFile);
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OutputStreamWriter out = null;
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try {
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OutputStreamWriter out;
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if (gzip) {
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FileOutputStream fileStream = new FileOutputStream(outFile);
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GZIPOutputStream gzipStream = new GZIPOutputStream(fileStream);
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@ -253,13 +259,19 @@ abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGener
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} else {
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out = new OutputStreamWriter(new FileOutputStream(outFile), Charset.forName("UTF-8").newEncoder());
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}
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writeSiteMap(out);
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out.flush();
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if (autoValidate) SitemapValidator.validateWebSitemap(outFile);
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} catch (IOException e) {
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throw new RuntimeException("Problem writing sitemap file " + outFile, e);
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} catch (SAXException e) {
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throw new RuntimeException("Sitemap file failed to validate (bug?)", e);
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} finally {
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if(out != null) {
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out.close();
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}
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}
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}
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@ -267,7 +279,6 @@ abstract class SitemapGenerator<U extends ISitemapUrl, THIS extends SitemapGener
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StringBuilder sb = new StringBuilder();
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writeSiteMapAsString(sb, urls);
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out.write(sb.toString());
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out.close();
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}
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}
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@ -1,5 +1,7 @@
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package com.redfin.sitemapgenerator;
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import org.xml.sax.SAXException;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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@ -9,8 +11,6 @@ import java.net.URL;
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import java.util.ArrayList;
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import java.util.Date;
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import org.xml.sax.SAXException;
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/**
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* Builds a sitemap index, which points only to other sitemaps.
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* @author Dan Fabulich
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@ -223,15 +223,27 @@ public class SitemapIndexGenerator {
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public void write() {
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if (!allowEmptyIndex && urls.isEmpty()) throw new RuntimeException("No URLs added, sitemap index would be empty; you must add some URLs with addUrls");
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try {
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// TODO gzip? is that legal for a sitemap index?
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FileWriter out = new FileWriter(outFile);
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writeSiteMap(out);
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if (autoValidate) SitemapValidator.validateSitemapIndex(outFile);
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} catch (IOException e) {
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throw new RuntimeException("Problem writing sitemap index file " + outFile, e);
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} catch (SAXException e) {
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throw new RuntimeException("Problem validating sitemap index file (bug?)", e);
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FileWriter out = null;
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try {
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// TODO gzip? is that legal for a sitemap index?
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out = new FileWriter(outFile);
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writeSiteMap(out);
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out.flush();
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if (autoValidate) SitemapValidator.validateSitemapIndex(outFile);
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} catch (IOException e) {
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throw new RuntimeException("Problem writing sitemap index file " + outFile, e);
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} catch (SAXException e) {
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throw new RuntimeException("Problem validating sitemap index file (bug?)", e);
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} finally {
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if(out != null) {
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out.close();
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}
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}
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} catch (IOException ex) {
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throw new RuntimeException("Closing of stream has failed.", ex);
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}
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}
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private void writeSiteMap(OutputStreamWriter out) throws IOException {
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@ -254,7 +266,6 @@ public class SitemapIndexGenerator {
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out.write(" </sitemap>\n");
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}
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out.write("</sitemapindex>");
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out.close();
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}
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}
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@ -1,9 +1,7 @@
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package com.redfin.sitemapgenerator;
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import java.io.File;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.InputStream;
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import org.xml.sax.InputSource;
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import org.xml.sax.SAXException;
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import javax.xml.XMLConstants;
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import javax.xml.transform.sax.SAXSource;
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@ -11,9 +9,10 @@ import javax.xml.transform.stream.StreamSource;
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import javax.xml.validation.Schema;
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import javax.xml.validation.SchemaFactory;
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import javax.xml.validation.Validator;
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import org.xml.sax.InputSource;
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import org.xml.sax.SAXException;
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import java.io.File;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.InputStream;
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/** Validates sitemaps and sitemap indexes
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*
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@ -39,23 +38,30 @@ public class SitemapValidator {
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private synchronized static void lazyLoad() {
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if (sitemapSchema != null) return;
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SchemaFactory factory =
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SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
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SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
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try {
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InputStream stream = SitemapValidator.class.getResourceAsStream("sitemap.xsd");
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if (stream == null) throw new RuntimeException("BUG Couldn't load sitemap.xsd");
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StreamSource source = new StreamSource(stream);
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sitemapSchema = factory.newSchema(source);
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stream.close();
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stream = SitemapValidator.class.getResourceAsStream("siteindex.xsd");
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if (stream == null) throw new RuntimeException("BUG Couldn't load siteindex.xsd");
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source = new StreamSource(stream);
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sitemapIndexSchema = factory.newSchema(source);
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stream.close();
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sitemapSchema = lazyLoad(factory, "sitemap.xsd");
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sitemapIndexSchema = lazyLoad(factory, "siteindex.xsd");
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} catch (Exception e) {
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throw new RuntimeException("BUG", e);
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}
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}
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private synchronized static Schema lazyLoad(SchemaFactory factory, String resource) throws IOException, SAXException {
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InputStream stream = null;
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try {
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stream = SitemapValidator.class.getResourceAsStream(resource);
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if (stream == null) throw new RuntimeException("BUG Couldn't load " + resource);
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StreamSource source = new StreamSource(stream);
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return factory.newSchema(source);
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} finally {
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if(stream != null) {
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stream.close();
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}
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}
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}
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/** Validates an ordinary web sitemap file (NOT a Google-specific sitemap) */
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public static void validateWebSitemap(File sitemap) throws SAXException {
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@ -70,15 +76,24 @@ public class SitemapValidator {
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}
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private static void validateXml(File sitemap, Schema schema) throws SAXException {
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Validator validator = schema.newValidator();
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try {
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FileReader reader = new FileReader(sitemap);
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SAXSource source = new SAXSource(new InputSource(reader));
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validator.validate(source);
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reader.close();
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} catch (IOException e) {
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throw new RuntimeException(e);
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Validator validator = schema.newValidator();
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FileReader reader = null;
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try {
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reader = new FileReader(sitemap);
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SAXSource source = new SAXSource(new InputSource(reader));
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validator.validate(source);
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} catch (IOException e) {
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throw new RuntimeException(e);
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} finally {
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if(reader != null) {
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reader.close();
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}
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}
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} catch (IOException ex) {
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throw new RuntimeException("Unable to close stream.", ex);
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}
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}
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}
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