--- /dev/null
+package org.apache.lucene.benchmark.byTask.feeds;
+
+/**
+ * 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.
+ */
+
+import org.apache.lucene.benchmark.byTask.utils.Config;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileFilter;
+import java.io.FileReader;
+import java.io.IOException;
+import java.text.DateFormat;
+import java.text.ParsePosition;
+import java.text.SimpleDateFormat;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.Locale;
+import java.util.Stack;
+
+/**
+ * A {@link ContentSource} using the Dir collection for its input. Supports
+ * the following configuration parameters (on top of {@link ContentSource}):
+ * <ul>
+ * <li><b>work.dir</b> - specifies the working directory. Required if "docs.dir"
+ * denotes a relative path (<b>default=work</b>).
+ * <li><b>docs.dir</b> - specifies the directory the Dir collection. Can be set
+ * to a relative path if "work.dir" is also specified (<b>default=dir-out</b>).
+ * </ul>
+ */
+public class DirContentSource extends ContentSource {
+
+ private static final class DateFormatInfo {
+ public DateFormatInfo() {}
+ DateFormat df;
+ ParsePosition pos;
+ }
+
+ public static class Iterator implements java.util.Iterator<File> {
+
+ static class Comparator implements java.util.Comparator<File> {
+ public int compare(File _a, File _b) {
+ String a = _a.toString();
+ String b = _b.toString();
+ int diff = a.length() - b.length();
+
+ if (diff > 0) {
+ while (diff-- > 0) {
+ b = "0" + b;
+ }
+ } else if (diff < 0) {
+ diff = -diff;
+ while (diff-- > 0) {
+ a = "0" + a;
+ }
+ }
+
+ /* note it's reversed because we're going to push,
+ which reverses again */
+ return b.compareTo(a);
+ }
+ }
+
+ int count = 0;
+
+ Stack<File> stack = new Stack<File>();
+
+ /* this seems silly ... there must be a better way ...
+ not that this is good, but can it matter? */
+
+ Comparator c = new Comparator();
+
+ public Iterator(File f) {
+ push(f);
+ }
+
+ void find() {
+ if (stack.empty()) {
+ return;
+ }
+ if (!(stack.peek()).isDirectory()) {
+ return;
+ }
+ File f = stack.pop();
+ push(f);
+ }
+
+ void push(File f) {
+ push(f.listFiles(new FileFilter() {
+
+ public boolean accept(File file) {
+ return file.isDirectory();
+ }
+ }));
+ push(f.listFiles(new FileFilter() {
+
+ public boolean accept(File file) {
+ return file.getName().endsWith(".txt");
+ }
+ }));
+ find();
+ }
+
+ void push(File[] files) {
+ Arrays.sort(files, c);
+ for(int i = 0; i < files.length; i++) {
+ // System.err.println("push " + files[i]);
+ stack.push(files[i]);
+ }
+ }
+
+ public int getCount(){
+ return count;
+ }
+
+ public boolean hasNext() {
+ return stack.size() > 0;
+ }
+
+ public File next() {
+ assert hasNext();
+ count++;
+ File object = stack.pop();
+ // System.err.println("pop " + object);
+ find();
+ return object;
+ }
+
+ public void remove() {
+ throw new RuntimeException("cannot");
+ }
+
+ }
+
+ private ThreadLocal<DateFormatInfo> dateFormat = new ThreadLocal<DateFormatInfo>();
+ private File dataDir = null;
+ private int iteration = 0;
+ private Iterator inputFiles = null;
+
+ // get/initiate a thread-local simple date format (must do so
+ // because SimpleDateFormat is not thread-safe).
+ private DateFormatInfo getDateFormatInfo() {
+ DateFormatInfo dfi = dateFormat.get();
+ if (dfi == null) {
+ dfi = new DateFormatInfo();
+ dfi.pos = new ParsePosition(0);
+ // date format: 30-MAR-1987 14:22:36.87
+ dfi.df = new SimpleDateFormat("dd-MMM-yyyy kk:mm:ss.SSS", Locale.US);
+ dfi.df.setLenient(true);
+ dateFormat.set(dfi);
+ }
+ return dfi;
+ }
+
+ private Date parseDate(String dateStr) {
+ DateFormatInfo dfi = getDateFormatInfo();
+ dfi.pos.setIndex(0);
+ dfi.pos.setErrorIndex(-1);
+ return dfi.df.parse(dateStr.trim(), dfi.pos);
+ }
+
+ @Override
+ public void close() throws IOException {
+ inputFiles = null;
+ }
+
+ @Override
+ public DocData getNextDocData(DocData docData) throws NoMoreDataException, IOException {
+ File f = null;
+ String name = null;
+ synchronized (this) {
+ if (!inputFiles.hasNext()) {
+ // exhausted files, start a new round, unless forever set to false.
+ if (!forever) {
+ throw new NoMoreDataException();
+ }
+ inputFiles = new Iterator(dataDir);
+ iteration++;
+ }
+ f = inputFiles.next();
+ // System.err.println(f);
+ name = f.getCanonicalPath()+"_"+iteration;
+ }
+
+ BufferedReader reader = new BufferedReader(new FileReader(f));
+ String line = null;
+ //First line is the date, 3rd is the title, rest is body
+ String dateStr = reader.readLine();
+ reader.readLine();//skip an empty line
+ String title = reader.readLine();
+ reader.readLine();//skip an empty line
+ StringBuilder bodyBuf = new StringBuilder(1024);
+ while ((line = reader.readLine()) != null) {
+ bodyBuf.append(line).append(' ');
+ }
+ reader.close();
+ addBytes(f.length());
+
+ Date date = parseDate(dateStr);
+
+ docData.clear();
+ docData.setName(name);
+ docData.setBody(bodyBuf.toString());
+ docData.setTitle(title);
+ docData.setDate(date);
+ return docData;
+ }
+
+ @Override
+ public synchronized void resetInputs() throws IOException {
+ super.resetInputs();
+ inputFiles = new Iterator(dataDir);
+ iteration = 0;
+ }
+
+ @Override
+ public void setConfig(Config config) {
+ super.setConfig(config);
+
+ File workDir = new File(config.get("work.dir", "work"));
+ String d = config.get("docs.dir", "dir-out");
+ dataDir = new File(d);
+ if (!dataDir.isAbsolute()) {
+ dataDir = new File(workDir, d);
+ }
+
+ inputFiles = new Iterator(dataDir);
+
+ if (inputFiles == null) {
+ throw new RuntimeException("No txt files in dataDir: " + dataDir.getAbsolutePath());
+ }
+ }
+
+}
fnp / pylucene.git / blobdiff