Switched to YAML config format.

[instantlauncher.git] / src / main / java / eu / svjatoslav / instantlauncher / configuration / ConfigurationManager.java

diff --git a/src/main/java/eu/svjatoslav/instantlauncher/configuration/ConfigurationManager.java b/src/main/java/eu/svjatoslav/instantlauncher/configuration/ConfigurationManager.java
new file mode 100755 (executable)
index 0000000..4bf00c9
--- /dev/null
+++ b/src/main/java/eu/svjatoslav/instantlauncher/configuration/ConfigurationManager.java
@@ -0,0 +1,79 @@
+package eu.svjatoslav.instantlauncher.configuration;
+
+import com.esotericsoftware.yamlbeans.YamlReader;
+import com.esotericsoftware.yamlbeans.YamlWriter;
+
+import java.io.*;
+import java.util.HashSet;
+import java.util.Map;
+
+public class ConfigurationManager {
+
+    private static final String CONFIG_FILE_NAME = ".instantlauncher";
+
+    private boolean propertiesChanged = false;
+
+    Configuration configuration;
+
+    public ConfigurationManager() throws IOException {
+        initialize();
+    }
+
+    private File getPropertiesFile() {
+        return new File(System.getProperty("user.home") + "/" + CONFIG_FILE_NAME);
+    }
+
+    public File getNavigationRootDirectory() {
+        if (configuration.navigationRootPath == null){
+            configuration.navigationRootPath = System.getProperty("user.home") + "/";
+            propertiesChanged = true;
+            registerDefaultAssociations();
+        }
+
+        return new File(configuration.navigationRootPath);
+    }
+
+    private void initialize() throws IOException {
+
+        loadIfFileExists();
+
+        validatePropertiesFile();
+
+        if (propertiesChanged) {
+            saveFile();
+        }
+    }
+
+    private void loadIfFileExists() throws IOException {
+        final File propertiesFile = getPropertiesFile();
+        if (!propertiesFile.exists())
+            return;
+
+        YamlReader reader = new YamlReader(new FileReader(propertiesFile));
+        configuration = reader.read(Configuration.class);
+        if (configuration == null) {
+            configuration = new Configuration();
+            configuration.fileAssociations = new HashSet<>();
+        };
+    }
+
+    private void saveFile() throws IOException {
+        YamlWriter writer = new YamlWriter(new FileWriter(getPropertiesFile()));
+        writer.write(configuration);
+        writer.close();
+    }
+
+    private void validatePropertiesFile() {
+        getNavigationRootDirectory();
+    }
+
+    private void registerFileAssociation(String fileRegex, String command){
+        FileAssociation association = new FileAssociation(fileRegex, command);
+        configuration.fileAssociations.add(association);
+        propertiesChanged = true;
+    }
+
+    private void registerDefaultAssociations(){
+        registerFileAssociation(".jpeg$", "eog {file}");
+    }
+}