From: David ‘Bombe’ Roden <bombe@pterodactylus.net>
Date: Sat, 30 Oct 2010 00:20:37 +0000 (+0200)
Subject: Add accessor for Identitys.
X-Git-Tag: 0.2-RC1~82
X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=commitdiff_plain;h=5d1ad36c04f83468efd85f6f03983306b2d98d6d

Add accessor for Identitys.
---

diff --git a/src/main/java/net/pterodactylus/sone/template/IdentityAccessor.java b/src/main/java/net/pterodactylus/sone/template/IdentityAccessor.java
new file mode 100644
index 0000000..4ea956d
--- /dev/null
+++ b/src/main/java/net/pterodactylus/sone/template/IdentityAccessor.java
@@ -0,0 +1,106 @@
+/*
+ * Sone - IdentityAccessor.java - Copyright © 2010 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.template;
+
+import java.util.Collections;
+import java.util.Set;
+
+import net.pterodactylus.sone.core.Core;
+import net.pterodactylus.sone.freenet.wot.Identity;
+import net.pterodactylus.sone.freenet.wot.OwnIdentity;
+import net.pterodactylus.sone.freenet.wot.PluginException;
+import net.pterodactylus.util.template.Accessor;
+import net.pterodactylus.util.template.DataProvider;
+import net.pterodactylus.util.template.ReflectionAccessor;
+
+/**
+ * {@link Accessor} implementation that adds a “uniqueNickname” member to an
+ * {@link Identity}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class IdentityAccessor extends ReflectionAccessor {
+
+	/** The core. */
+	private final Core core;
+
+	/**
+	 * Creates a new identity accessor.
+	 *
+	 * @param core
+	 *            The core
+	 */
+	public IdentityAccessor(Core core) {
+		this.core = core;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public Object get(DataProvider dataProvider, Object object, String member) {
+		Identity identity = (Identity) object;
+		if ("uniqueNickname".equals(member)) {
+			int minLength = -1;
+			boolean found = false;
+			Set<OwnIdentity> ownIdentities = null;
+			try {
+				ownIdentities = core.getWebOfTrustConnector().loadAllOwnIdentities();
+			} catch (PluginException e) {
+				ownIdentities = Collections.emptySet();
+			}
+			do {
+				boolean unique = true;
+				String abbreviatedWantedNickname = getAbbreviatedNickname(identity, ++minLength);
+				for (Identity ownIdentity : ownIdentities) {
+					if (ownIdentity.equals(identity)) {
+						continue;
+					}
+					String abbreviatedNickname = getAbbreviatedNickname(ownIdentity, minLength);
+					if (abbreviatedNickname.equals(abbreviatedWantedNickname)) {
+						unique = false;
+						break;
+					}
+				}
+				found = unique;
+			} while (!found && (minLength < 43));
+			return getAbbreviatedNickname(identity, minLength);
+		}
+		return super.get(dataProvider, object, member);
+	}
+
+	//
+	// PRIVATE METHODS
+	//
+
+	/**
+	 * Returns the nickname of the given identity, optionally appending the
+	 * first characters of the ID to it.
+	 *
+	 * @param identity
+	 *            The identity
+	 * @param length
+	 *            The number of characters from the beginning of the ID to
+	 *            append to the nickname
+	 * @return The nickname with optional ID appendage
+	 */
+	private String getAbbreviatedNickname(Identity identity, int length) {
+		return identity.getNickname() + ((length > 0) ? "@" + identity.getId().substring(0, length) : "");
+	}
+
+}