Add SimpleFieldSet builder.

diff --git a/src/main/java/net/pterodactylus/sone/freenet/SimpleFieldSetBuilder.java b/src/main/java/net/pterodactylus/sone/freenet/SimpleFieldSetBuilder.java
new file mode 100644 (file)
index 0000000..a596dcd
--- /dev/null
+++ b/src/main/java/net/pterodactylus/sone/freenet/SimpleFieldSetBuilder.java
@@ -0,0 +1,92 @@
+/*
+ * Sone - SimpleFieldSetBuilder.java - Copyright © 2011 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.freenet;
+
+import net.pterodactylus.util.validation.Validation;
+import freenet.support.SimpleFieldSet;
+
+/**
+ * Helper class to construct {@link SimpleFieldSet} objects in a single call.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class SimpleFieldSetBuilder {
+
+       /** The simple field set that is being constructed. */
+       private final SimpleFieldSet simpleFieldSet;
+
+       /**
+        * Creates a new simple field set builder using a new, empty simple field
+        * set.
+        */
+       public SimpleFieldSetBuilder() {
+               this(new SimpleFieldSet(true));
+       }
+
+       /**
+        * Creates a new simple field set builder that will return the given simple
+        * field set on {@link #get()}.
+        *
+        * @param simpleFieldSet
+        *            The simple field set to build
+        */
+       public SimpleFieldSetBuilder(SimpleFieldSet simpleFieldSet) {
+               Validation.begin().isNotNull("Simple Field Set", simpleFieldSet).check();
+               this.simpleFieldSet = simpleFieldSet;
+       }
+
+       /**
+        * Returns the constructed simple field set.
+        *
+        * @return The construct simple field set
+        */
+       public SimpleFieldSet get() {
+               return simpleFieldSet;
+       }
+
+       /**
+        * Stores the given value under the given key, overwriting any previous
+        * value.
+        *
+        * @param key
+        *            The key of the value
+        * @param value
+        *            The value to store
+        * @return This simple field set builder
+        */
+       public SimpleFieldSetBuilder put(String key, String value) {
+               simpleFieldSet.putOverwrite(key, value);
+               return this;
+       }
+
+       /**
+        * Stores the given value under the given key, overwriting any previous
+        * value.
+        *
+        * @param key
+        *            The key of the value
+        * @param value
+        *            The value to store
+        * @return This simple field set builder
+        */
+       public SimpleFieldSetBuilder put(String key, int value) {
+               simpleFieldSet.put(key, value);
+               return this;
+       }
+
+}