diff options
Diffstat (limited to 'src/main/java/com/gitblit/IStoredSettings.java')
| -rw-r--r-- | src/main/java/com/gitblit/IStoredSettings.java | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/src/main/java/com/gitblit/IStoredSettings.java b/src/main/java/com/gitblit/IStoredSettings.java new file mode 100644 index 00000000..790f8b68 --- /dev/null +++ b/src/main/java/com/gitblit/IStoredSettings.java @@ -0,0 +1,299 @@ +/*
+ * 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.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gitblit.utils.StringUtils;
+
+/**
+ * Base class for stored settings implementations.
+ *
+ * @author James Moger
+ *
+ */
+public abstract class IStoredSettings {
+
+ protected final Logger logger;
+
+ protected final Properties overrides = new Properties();
+
+ public IStoredSettings(Class<? extends IStoredSettings> clazz) {
+ logger = LoggerFactory.getLogger(clazz);
+ }
+
+ protected abstract Properties read();
+
+ private Properties getSettings() {
+ Properties props = read();
+ props.putAll(overrides);
+ return props;
+ }
+
+ /**
+ * Returns the list of keys whose name starts with the specified prefix. If
+ * the prefix is null or empty, all key names are returned.
+ *
+ * @param startingWith
+ * @return list of keys
+ */
+ public List<String> getAllKeys(String startingWith) {
+ List<String> keys = new ArrayList<String>();
+ Properties props = getSettings();
+ if (StringUtils.isEmpty(startingWith)) {
+ keys.addAll(props.stringPropertyNames());
+ } else {
+ startingWith = startingWith.toLowerCase();
+ for (Object o : props.keySet()) {
+ String key = o.toString();
+ if (key.toLowerCase().startsWith(startingWith)) {
+ keys.add(key);
+ }
+ }
+ }
+ return keys;
+ }
+
+ /**
+ * Returns the boolean value for the specified key. If the key does not
+ * exist or the value for the key can not be interpreted as a boolean, the
+ * defaultValue is returned.
+ *
+ * @param key
+ * @param defaultValue
+ * @return key value or defaultValue
+ */
+ public boolean getBoolean(String name, boolean defaultValue) {
+ Properties props = getSettings();
+ if (props.containsKey(name)) {
+ String value = props.getProperty(name);
+ if (!StringUtils.isEmpty(value)) {
+ return Boolean.parseBoolean(value.trim());
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Returns the integer value for the specified key. If the key does not
+ * exist or the value for the key can not be interpreted as an integer, the
+ * defaultValue is returned.
+ *
+ * @param key
+ * @param defaultValue
+ * @return key value or defaultValue
+ */
+ public int getInteger(String name, int defaultValue) {
+ Properties props = getSettings();
+ if (props.containsKey(name)) {
+ try {
+ String value = props.getProperty(name);
+ if (!StringUtils.isEmpty(value)) {
+ return Integer.parseInt(value.trim());
+ }
+ } catch (NumberFormatException e) {
+ logger.warn("Failed to parse integer for " + name + " using default of "
+ + defaultValue);
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Returns the long value for the specified key. If the key does not
+ * exist or the value for the key can not be interpreted as an long, the
+ * defaultValue is returned.
+ *
+ * @param key
+ * @param defaultValue
+ * @return key value or defaultValue
+ */
+ public long getLong(String name, long defaultValue) {
+ Properties props = getSettings();
+ if (props.containsKey(name)) {
+ try {
+ String value = props.getProperty(name);
+ if (!StringUtils.isEmpty(value)) {
+ return Long.parseLong(value.trim());
+ }
+ } catch (NumberFormatException e) {
+ logger.warn("Failed to parse long for " + name + " using default of "
+ + defaultValue);
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Returns an int filesize from a string value such as 50m or 50mb
+ * @param name
+ * @param defaultValue
+ * @return an int filesize or defaultValue if the key does not exist or can
+ * not be parsed
+ */
+ public int getFilesize(String name, int defaultValue) {
+ String val = getString(name, null);
+ if (StringUtils.isEmpty(val)) {
+ return defaultValue;
+ }
+ return com.gitblit.utils.FileUtils.convertSizeToInt(val, defaultValue);
+ }
+
+ /**
+ * Returns an long filesize from a string value such as 50m or 50mb
+ * @param name
+ * @param defaultValue
+ * @return a long filesize or defaultValue if the key does not exist or can
+ * not be parsed
+ */
+ public long getFilesize(String key, long defaultValue) {
+ String val = getString(key, null);
+ if (StringUtils.isEmpty(val)) {
+ return defaultValue;
+ }
+ return com.gitblit.utils.FileUtils.convertSizeToLong(val, defaultValue);
+ }
+
+ /**
+ * Returns the char value for the specified key. If the key does not exist
+ * or the value for the key can not be interpreted as a char, the
+ * defaultValue is returned.
+ *
+ * @param key
+ * @param defaultValue
+ * @return key value or defaultValue
+ */
+ public char getChar(String name, char defaultValue) {
+ Properties props = getSettings();
+ if (props.containsKey(name)) {
+ String value = props.getProperty(name);
+ if (!StringUtils.isEmpty(value)) {
+ return value.trim().charAt(0);
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Returns the string value for the specified key. If the key does not exist
+ * or the value for the key can not be interpreted as a string, the
+ * defaultValue is returned.
+ *
+ * @param key
+ * @param defaultValue
+ * @return key value or defaultValue
+ */
+ public String getString(String name, String defaultValue) {
+ Properties props = getSettings();
+ if (props.containsKey(name)) {
+ String value = props.getProperty(name);
+ if (value != null) {
+ return value.trim();
+ }
+ }
+ return defaultValue;
+ }
+
+ /**
+ * Returns the string value for the specified key. If the key does not
+ * exist an exception is thrown.
+ *
+ * @param key
+ * @return key value
+ */
+ public String getRequiredString(String name) {
+ Properties props = getSettings();
+ if (props.containsKey(name)) {
+ String value = props.getProperty(name);
+ if (value != null) {
+ return value.trim();
+ }
+ }
+ throw new RuntimeException("Property (" + name + ") does not exist");
+ }
+
+ /**
+ * Returns a list of space-separated strings from the specified key.
+ *
+ * @param name
+ * @return list of strings
+ */
+ public List<String> getStrings(String name) {
+ return getStrings(name, " ");
+ }
+
+ /**
+ * Returns a list of strings from the specified key using the specified
+ * string separator.
+ *
+ * @param name
+ * @param separator
+ * @return list of strings
+ */
+ public List<String> getStrings(String name, String separator) {
+ List<String> strings = new ArrayList<String>();
+ Properties props = getSettings();
+ if (props.containsKey(name)) {
+ String value = props.getProperty(name);
+ strings = StringUtils.getStringsFromValue(value, separator);
+ }
+ return strings;
+ }
+
+ /**
+ * Returns a map of strings from the specified key.
+ *
+ * @param name
+ * @return map of string, string
+ */
+ public Map<String, String> getMap(String name) {
+ Map<String, String> map = new LinkedHashMap<String, String>();
+ for (String string : getStrings(name)) {
+ String[] kvp = string.split("=", 2);
+ String key = kvp[0];
+ String value = kvp[1];
+ map.put(key, value);
+ }
+ return map;
+ }
+
+ /**
+ * Override the specified key with the specified value.
+ *
+ * @param key
+ * @param value
+ */
+ public void overrideSetting(String key, String value) {
+ overrides.put(key, value);
+ }
+
+ /**
+ * Updates the values for the specified keys and persists the entire
+ * configuration file.
+ *
+ * @param map
+ * of key, value pairs
+ * @return true if successful
+ */
+ public abstract boolean saveSettings(Map<String, String> updatedSettings);
+}
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