From 79dfe69726b6255464599ab852018e4d2ff96fdc Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Fri, 19 Oct 2012 22:47:35 -0400
Subject: [PATCH] Split edit repository page into tabs
---
src/com/gitblit/FileSettings.java | 209 ++++++++++++++++++++++++----------------------------
1 files changed, 97 insertions(+), 112 deletions(-)
diff --git a/src/com/gitblit/FileSettings.java b/src/com/gitblit/FileSettings.java
index 371b734..be1f44f 100644
--- a/src/com/gitblit/FileSettings.java
+++ b/src/com/gitblit/FileSettings.java
@@ -1,143 +1,128 @@
+/*
+ * Copyright 2011 gitblit.com.
+ *
+ * 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 com.gitblit;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
-import java.util.ArrayList;
-import java.util.List;
+import java.util.Map;
import java.util.Properties;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import com.gitblit.utils.FileUtils;
/**
- * Reads GitBlit settings file.
+ * Dynamically loads and reloads a properties file by keeping track of the last
+ * modification date.
+ *
+ * @author James Moger
*
*/
-public class FileSettings implements IStoredSettings {
+public class FileSettings extends IStoredSettings {
- private Properties properties = new Properties();
+ protected final File propertiesFile;
- private long lastread = 0;
+ private final Properties properties = new Properties();
- private final Logger logger = LoggerFactory.getLogger(FileSettings.class);
+ private volatile long lastModified;
+
+ private volatile boolean forceReload;
- @Override
- public List<String> getAllKeys(String startingWith) {
- startingWith = startingWith.toLowerCase();
- List<String> keys = new ArrayList<String>();
- Properties props = read();
- for (Object o : props.keySet()) {
- String key = o.toString().toLowerCase();
- if (key.startsWith(startingWith)) {
- keys.add(key);
- }
- }
- return keys;
+ public FileSettings(String file) {
+ super(FileSettings.class);
+ this.propertiesFile = new File(file);
}
+ /**
+ * Returns a properties object which contains the most recent contents of
+ * the properties file.
+ */
@Override
- public boolean getBoolean(String name, boolean defaultValue) {
- Properties props = read();
- if (props.containsKey(name)) {
+ protected synchronized Properties read() {
+ if (propertiesFile.exists() && (forceReload || (propertiesFile.lastModified() > lastModified))) {
+ FileInputStream is = null;
try {
- String value = props.getProperty(name);
- if (value != null && value.trim().length() > 0) {
- return Boolean.parseBoolean(value);
- }
- } catch (Exception e) {
- logger.warn("No override setting for " + name + " using default of " + defaultValue);
- }
- }
- return defaultValue;
- }
+ Properties props = new Properties();
+ is = new FileInputStream(propertiesFile);
+ props.load(is);
- @Override
- public int getInteger(String name, int defaultValue) {
- Properties props = read();
- if (props.containsKey(name)) {
- try {
- String value = props.getProperty(name);
- if (value != null && value.trim().length() > 0) {
- return Integer.parseInt(value);
- }
- } catch (Exception e) {
- logger.warn("No override setting for " + name + " using default of " + defaultValue);
- }
- }
- return defaultValue;
- }
-
- @Override
- public String getString(String name, String defaultValue) {
- Properties props = read();
- if (props.containsKey(name)) {
- try {
- String value = props.getProperty(name);
- if (value != null) {
- return value;
- }
- } catch (Exception e) {
- logger.warn("No override setting for " + name + " using default of " + defaultValue);
- }
- }
- return defaultValue;
- }
-
- @Override
- public List<String> getStrings(String name) {
- return getStrings(name, " ");
- }
-
- @Override
- public List<String> getStringsFromValue(String value) {
- return getStringsFromValue(value, " ");
- }
-
- @Override
- public List<String> getStrings(String name, String separator) {
- List<String> strings = new ArrayList<String>();
- Properties props = read();
- if (props.containsKey(name)) {
- String value = props.getProperty(name);
- strings = getStringsFromValue(value, separator);
- }
- return strings;
- }
-
- @Override
- public List<String> getStringsFromValue(String value, String separator) {
- List<String> strings = new ArrayList<String>();
- try {
- String[] chunks = value.split(separator);
- for (String chunk : chunks) {
- chunk = chunk.trim();
- if (chunk.length() > 0) {
- strings.add(chunk);
- }
- }
- } catch (Exception e) {
- }
- return strings;
- }
-
- private synchronized Properties read() {
- File file = new File(Constants.PROPERTIES_FILE);
- if (file.exists() && (file.lastModified() > lastread)) {
- try {
- properties = new Properties();
- properties.load(new FileInputStream(Constants.PROPERTIES_FILE));
- lastread = file.lastModified();
+ // load properties after we have successfully read file
+ properties.clear();
+ properties.putAll(props);
+ lastModified = propertiesFile.lastModified();
+ forceReload = false;
} catch (FileNotFoundException f) {
+ // IGNORE - won't happen because file.exists() check above
} catch (Throwable t) {
- t.printStackTrace();
+ logger.error("Failed to read " + propertiesFile.getName(), t);
+ } finally {
+ if (is != null) {
+ try {
+ is.close();
+ } catch (Throwable t) {
+ // IGNORE
+ }
+ }
}
}
return properties;
}
+
+ /**
+ * Updates the specified settings in the settings file.
+ */
+ public synchronized boolean saveSettings(Map<String, String> settings) {
+ String content = FileUtils.readContent(propertiesFile, "\n");
+ for (Map.Entry<String, String> setting:settings.entrySet()) {
+ String regex = "(?m)^(" + regExEscape(setting.getKey()) + "\\s*+=\\s*+)"
+ + "(?:[^\r\n\\\\]++|\\\\(?:\r?\n|\r|.))*+$";
+ String oldContent = content;
+ content = content.replaceAll(regex, setting.getKey() + " = " + setting.getValue());
+ if (content.equals(oldContent)) {
+ // did not replace value because it does not exist in the file
+ // append new setting to content (issue-85)
+ content += "\n" + setting.getKey() + " = " + setting.getValue();
+ }
+ }
+ FileUtils.writeContent(propertiesFile, content);
+ // manually set the forceReload flag because not all JVMs support real
+ // millisecond resolution of lastModified. (issue-55)
+ forceReload = true;
+ return true;
+ }
+ private String regExEscape(String input) {
+ return input.replace(".", "\\.");
+ }
+
+ /**
+ * @return the last modification date of the properties file
+ */
+ protected long lastModified() {
+ return lastModified;
+ }
+
+ /**
+ * @return the state of the force reload flag
+ */
+ protected boolean forceReload() {
+ return forceReload;
+ }
+
@Override
public String toString() {
- return getClass().getSimpleName() + ": " + new File(Constants.PROPERTIES_FILE).getAbsolutePath();
+ return propertiesFile.getAbsolutePath();
}
}
--
Gitblit v1.9.1