return InvalidJid object instead of null if Jid can not be parsed

1 files changed, 140 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/xmpp/InvalidJid.java b/src/main/java/de/pixart/messenger/xmpp/InvalidJid.java
new file mode 100644
index 000000000..fd4ca4b90
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/xmpp/InvalidJid.java
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2018, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.pixart.messenger.xmpp;
+
+import android.support.annotation.NonNull;
+
+import rocks.xmpp.addr.Jid;
+
+public class InvalidJid implements Jid {
+
+    private final String value;
+
+    public InvalidJid(String jid) {
+        this.value = jid;
+    }
+
+    @Override
+    @NonNull
+    public String toString() {
+        return value;
+    }
+
+    @Override
+    public boolean isFullJid() {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public boolean isBareJid() {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public Jid asBareJid() {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public Jid withLocal(CharSequence charSequence) {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public Jid withResource(CharSequence charSequence) {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public Jid atSubdomain(CharSequence charSequence) {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public String getLocal() {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public String getEscapedLocal() {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public String getDomain() {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public String getResource() {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public String toEscapedString() {
+        throw new AssertionError("Not implemented");
+    }
+
+    @Override
+    public int length() {
+        return value.length();
+    }
+
+    @Override
+    public char charAt(int index) {
+        return value.charAt(index);
+    }
+
+    @Override
+    public CharSequence subSequence(int start, int end) {
+        return value.subSequence(start, end);
+    }
+
+    @Override
+    public int compareTo(@NonNull Jid o) {
+        throw new AssertionError("Not implemented");
+    }
+
+    public static Jid getNullForInvalid(Jid jid) {
+        if (jid != null && jid instanceof InvalidJid) {
+            return null;
+        } else {
+            return jid;
+        }
+    }
+
+    public static boolean isValid(Jid jid) {
+        if (jid != null && jid instanceof InvalidJid) {
+            return false;
+        } else {
+            return true;
+        }
+    }
+}
\ No newline at end of file