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| | | import java.io.File;
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| | | import java.io.FileInputStream;
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| | | import java.io.FileNotFoundException;
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| | | import java.util.Map;
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| | | import java.util.Properties;
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| | | import com.gitblit.utils.FileUtils;
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| | |
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| | | /**
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| | | * Reads GitBlit settings file.
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| | | * Dynamically loads and reloads a properties file by keeping track of the last
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| | | * modification date.
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| | | * |
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| | | * @author James Moger
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| | | *
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| | | */
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| | | public class FileSettings extends IStoredSettings {
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| | | private final Properties properties = new Properties();
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| | |
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| | | private volatile long lastread;
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| | | private volatile long lastModified;
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| | | private volatile boolean forceReload;
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| | |
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| | | public FileSettings(String file) {
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| | | super(FileSettings.class);
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| | | this.propertiesFile = new File(file);
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| | | }
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| | |
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| | | /**
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| | | * Returns a properties object which contains the most recent contents of
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| | | * the properties file.
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| | | */
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| | | @Override
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| | | protected synchronized Properties read() {
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| | | if (propertiesFile.exists() && (propertiesFile.lastModified() > lastread)) {
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| | | if (propertiesFile.exists() && (forceReload || (propertiesFile.lastModified() > lastModified))) {
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| | | FileInputStream is = null;
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| | | try {
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| | | Properties props = new Properties();
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| | | is = new FileInputStream(propertiesFile);
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| | | props.load(is);
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| | | // load properties after we have successfully read file
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| | | properties.clear();
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| | | properties.putAll(props);
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| | | lastread = propertiesFile.lastModified();
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| | | lastModified = propertiesFile.lastModified();
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| | | forceReload = false;
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| | | } catch (FileNotFoundException f) {
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| | | // IGNORE - won't happen because file.exists() check above
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| | | } catch (Throwable t) {
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| | | return properties;
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| | | }
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| | |
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| | | /**
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| | | * Updates the specified settings in the settings file.
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| | | */
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| | | public synchronized boolean saveSettings(Map<String, String> settings) {
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| | | String content = FileUtils.readContent(propertiesFile, "\n");
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| | | for (Map.Entry<String, String> setting:settings.entrySet()) {
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| | | String regex = "(?m)^(" + regExEscape(setting.getKey()) + "\\s*+=\\s*+)"
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| | | + "(?:[^\r\n\\\\]++|\\\\(?:\r?\n|\r|.))*+$";
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| | | String oldContent = content;
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| | | content = content.replaceAll(regex, setting.getKey() + " = " + setting.getValue());
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| | | if (content.equals(oldContent)) {
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| | | // did not replace value because it does not exist in the file
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| | | // append new setting to content (issue-85)
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| | | content += "\n" + setting.getKey() + " = " + setting.getValue();
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| | | }
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| | | }
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| | | FileUtils.writeContent(propertiesFile, content);
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| | | // manually set the forceReload flag because not all JVMs support real
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| | | // millisecond resolution of lastModified. (issue-55) |
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| | | forceReload = true;
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| | | return true;
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| | | }
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| | | |
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| | | private String regExEscape(String input) {
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| | | return input.replace(".", "\\.");
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| | | }
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| | |
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| | | /**
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| | | * @return the last modification date of the properties file
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| | | */
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| | | protected long lastModified() {
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| | | return lastModified;
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| | | }
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| | |
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| | | /**
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| | | * @return the state of the force reload flag
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| | | */
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| | | protected boolean forceReload() {
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| | | return forceReload;
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| | | }
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| | |
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| | | @Override
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| | | public String toString() {
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| | | return propertiesFile.getAbsolutePath();
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