Store Sones in database only.

[Sone.git] / src / main / java / net / pterodactylus / sone / data / impl / AbstractSoneBuilder.java

diff --git a/src/main/java/net/pterodactylus/sone/data/impl/AbstractSoneBuilder.java b/src/main/java/net/pterodactylus/sone/data/impl/AbstractSoneBuilder.java
new file mode 100644 (file)
index 0000000..a214677
--- /dev/null
+++ b/src/main/java/net/pterodactylus/sone/data/impl/AbstractSoneBuilder.java
@@ -0,0 +1,37 @@
+package net.pterodactylus.sone.data.impl;
+
+import static com.google.common.base.Preconditions.checkState;
+
+import net.pterodactylus.sone.database.SoneBuilder;
+import net.pterodactylus.sone.freenet.wot.Identity;
+import net.pterodactylus.sone.freenet.wot.OwnIdentity;
+
+/**
+ * Abstract {@link SoneBuilder} implementation.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public abstract class AbstractSoneBuilder implements SoneBuilder {
+
+       protected Identity identity;
+       protected boolean local;
+
+       @Override
+       public SoneBuilder from(Identity identity) {
+               this.identity = identity;
+               return this;
+       }
+
+       @Override
+       public SoneBuilder local() {
+               this.local = true;
+               return this;
+       }
+
+       protected void validate() throws IllegalStateException {
+               checkState(identity != null, "identity must not be null");
+               checkState(!local || (identity instanceof OwnIdentity),
+                               "can not create local Sone from remote identity");
+       }
+
+}