Version 3.0.2 (B:21)

* Fixed Metrics NPE when using SQL
* Cleanup

src/org/bukkit/util/config/Configuration.java

@@ -0,0 +1,236 @@
+package org.bukkit.util.config;
+
+/*
+ * Revived classes from a now-ancient version of the bukkit api.
+ * 
+ * https://github.com/Bukkit/Bukkit/tree/55f405f4a855fcf165e02379cae5bebc76c517d4/src/main/java/org/bukkit/util/config
+ */
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.util.HashMap;
+import java.util.Map;
+import org.yaml.snakeyaml.DumperOptions;
+import org.yaml.snakeyaml.Yaml;
+import org.yaml.snakeyaml.constructor.SafeConstructor;
+import org.yaml.snakeyaml.introspector.Property;
+import org.yaml.snakeyaml.nodes.CollectionNode;
+import org.yaml.snakeyaml.nodes.MappingNode;
+import org.yaml.snakeyaml.nodes.Node;
+import org.yaml.snakeyaml.nodes.NodeTuple;
+import org.yaml.snakeyaml.nodes.SequenceNode;
+import org.yaml.snakeyaml.nodes.Tag;
+import org.yaml.snakeyaml.reader.UnicodeReader;
+import org.yaml.snakeyaml.representer.Represent;
+import org.yaml.snakeyaml.representer.Representer;
+
+/**
+ * YAML configuration loader. To use this class, construct it with path to
+ * a file and call its load() method. For specifying node paths in the
+ * various get*() methods, they support SK's path notation, allowing you to
+ * select child nodes by delimiting node names with periods.
+ *
+ * <p>
+ * For example, given the following configuration file:</p>
+ *
+ * <pre>members:
+ *     - Hollie
+ *     - Jason
+ *     - Bobo
+ *     - Aya
+ *     - Tetsu
+ * worldguard:
+ *     fire:
+ *         spread: false
+ *         blocks: [cloth, rock, glass]
+ * sturmeh:
+ *     cool: false
+ *     eats:
+ *         babies: true</pre>
+ *
+ * <p>Calling code could access sturmeh's baby eating state by using
+ * <code>getBoolean("sturmeh.eats.babies", false)</code>. For lists, there are
+ * methods such as <code>getStringList</code> that will return a type safe list.
+ *
+ * <p>This class is currently incomplete. It is not yet possible to get a node.
+ * </p>
+ *
+ */
+public class Configuration extends ConfigurationNode {
+    private Yaml yaml;
+    private File file;
+    private String header = null;
+
+
+    public Configuration(File file) {
+        super(new HashMap<String, Object>());
+
+        DumperOptions options = new DumperOptions();
+
+        options.setIndent(4);
+        options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
+
+        yaml = new Yaml(new SafeConstructor(), new EmptyNullRepresenter(), options);
+
+        this.file = file;
+    }
+
+    /**
+     * Loads the configuration file. All errors are thrown away.
+     */
+    public void load() {
+        FileInputStream stream = null;
+
+        try {
+            stream = new FileInputStream(file);
+            read(yaml.load(new UnicodeReader(stream)));
+        } catch (IOException e) {
+            root = new HashMap<String, Object>();
+        } catch (ConfigurationException e) {
+            root = new HashMap<String, Object>();
+        } finally {
+            try {
+                if (stream != null) {
+                    stream.close();
+                }
+            } catch (IOException e) {}
+        }
+    }
+
+    /**
+     * Set the header for the file as a series of lines that are terminated
+     * by a new line sequence.
+     *
+     * @param headerLines header lines to prepend
+     */
+    public void setHeader(String... headerLines) {
+        StringBuilder header = new StringBuilder();
+
+        for (String line : headerLines) {
+            if (header.length() > 0) {
+                header.append("\r\n");
+            }
+            header.append(line);
+        }
+
+        setHeader(header.toString());
+    }
+
+    /**
+     * Set the header for the file. A header can be provided to prepend the
+     * YAML data output on configuration save. The header is
+     * printed raw and so must be manually commented if used. A new line will
+     * be appended after the header, however, if a header is provided.
+     *
+     * @param header header to prepend
+     */
+    public void setHeader(String header) {
+        this.header = header;
+    }
+
+    /**
+     * Return the set header.
+     *
+     * @return The header comment.
+     */
+    public String getHeader() {
+        return header;
+    }
+
+    /**
+     * Saves the configuration to disk. All errors are clobbered.
+     *
+     * @return true if it was successful
+     */
+    public boolean save() {
+        FileOutputStream stream = null;
+
+        File parent = file.getParentFile();
+
+        if (parent != null) {
+            parent.mkdirs();
+        }
+
+        try {
+            stream = new FileOutputStream(file);
+            OutputStreamWriter writer = new OutputStreamWriter(stream, "UTF-8");
+            if (header != null) {
+                writer.append(header);
+                writer.append("\r\n");
+            }
+            yaml.dump(root, writer);
+            return true;
+        } catch (IOException e) {} finally {
+            try {
+                if (stream != null) {
+                    stream.close();
+                }
+            } catch (IOException e) {}
+        }
+
+        return false;
+    }
+
+    @SuppressWarnings("unchecked")
+    private void read(Object input) throws ConfigurationException {
+        try {
+            if (null == input) {
+                root = new HashMap<String, Object>();
+            } else {
+                root = (Map<String, Object>) input;
+            }
+        } catch (ClassCastException e) {
+            throw new ConfigurationException("Root document must be an key-value structure");
+        }
+    }
+
+    /**
+     * This method returns an empty ConfigurationNode for using as a
+     * default in methods that select a node from a node list.
+     * @return The empty node.
+     */
+    public static ConfigurationNode getEmptyNode() {
+        return new ConfigurationNode(new HashMap<String, Object>());
+    }
+}
+
+class EmptyNullRepresenter extends Representer {
+
+    public EmptyNullRepresenter() {
+        super();
+        this.nullRepresenter = new EmptyRepresentNull();
+    }
+
+    protected class EmptyRepresentNull implements Represent {
+        public Node representData(Object data) {
+            return representScalar(Tag.NULL, ""); // Changed "null" to "" so as to avoid writing nulls
+        }
+    }
+
+    // Code borrowed from snakeyaml (http://code.google.com/p/snakeyaml/source/browse/src/test/java/org/yaml/snakeyaml/issues/issue60/SkipBeanTest.java)
+    @Override
+    protected NodeTuple representJavaBeanProperty(Object javaBean, Property property, Object propertyValue, Tag customTag) {
+        NodeTuple tuple = super.representJavaBeanProperty(javaBean, property, propertyValue, customTag);
+        Node valueNode = tuple.getValueNode();
+        if (valueNode instanceof CollectionNode) {
+            // Removed null check
+            if (Tag.SEQ.equals(valueNode.getTag())) {
+                SequenceNode seq = (SequenceNode) valueNode;
+                if (seq.getValue().isEmpty()) {
+                    return null; // skip empty lists
+                }
+            }
+            if (Tag.MAP.equals(valueNode.getTag())) {
+                MappingNode seq = (MappingNode) valueNode;
+                if (seq.getValue().isEmpty()) {
+                    return null; // skip empty maps
+                }
+            }
+        }
+        return tuple;
+    }
+    // End of borrowed code
+}

src/org/bukkit/util/config/ConfigurationException.java

@@ -0,0 +1,24 @@
+package org.bukkit.util.config;
+
+/*
+ * Revived classes from a now-ancient version of the bukkit api.
+ * 
+ * https://github.com/Bukkit/Bukkit/tree/55f405f4a855fcf165e02379cae5bebc76c517d4/src/main/java/org/bukkit/util/config
+ */
+
+/**
+ * Configuration exception.
+ *
+ * @author sk89q
+ */
+public class ConfigurationException extends Exception {
+    private static final long serialVersionUID = -2442886939908724203L;
+
+    public ConfigurationException() {
+        super();
+    }
+
+    public ConfigurationException(String msg) {
+        super(msg);
+    }
+}