1 files changed, 59 insertions, 0 deletions
diff --git a/java/src/main/java/org/whispersystems/libaxolotl/state/impl/InMemorySignedPreKeyStore.java b/java/src/main/java/org/whispersystems/libaxolotl/state/impl/InMemorySignedPreKeyStore.java
new file mode 100644
index 00000000..bab83137
--- /dev/null
+++ b/java/src/main/java/org/whispersystems/libaxolotl/state/impl/InMemorySignedPreKeyStore.java
@@ -0,0 +1,59 @@
+package org.whispersystems.libaxolotl.state.impl;
+
+import org.whispersystems.libaxolotl.InvalidKeyIdException;
+import org.whispersystems.libaxolotl.state.SignedPreKeyRecord;
+import org.whispersystems.libaxolotl.state.SignedPreKeyStore;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+public class InMemorySignedPreKeyStore implements SignedPreKeyStore {
+
+  private final Map<Integer, byte[]> store = new HashMap<>();
+
+  @Override
+  public SignedPreKeyRecord loadSignedPreKey(int signedPreKeyId) throws InvalidKeyIdException {
+    try {
+      if (!store.containsKey(signedPreKeyId)) {
+        throw new InvalidKeyIdException("No such signedprekeyrecord! " + signedPreKeyId);
+      }
+
+      return new SignedPreKeyRecord(store.get(signedPreKeyId));
+    } catch (IOException e) {
+      throw new AssertionError(e);
+    }
+  }
+
+  @Override
+  public List<SignedPreKeyRecord> loadSignedPreKeys() {
+    try {
+      List<SignedPreKeyRecord> results = new LinkedList<>();
+
+      for (byte[] serialized : store.values()) {
+        results.add(new SignedPreKeyRecord(serialized));
+      }
+
+      return results;
+    } catch (IOException e) {
+      throw new AssertionError(e);
+    }
+  }
+
+  @Override
+  public void storeSignedPreKey(int signedPreKeyId, SignedPreKeyRecord record) {
+    store.put(signedPreKeyId, record.serialize());
+  }
+
+  @Override
+  public boolean containsSignedPreKey(int signedPreKeyId) {
+    return store.containsKey(signedPreKeyId);
+  }
+
+  @Override
+  public void removeSignedPreKey(int signedPreKeyId) {
+    store.remove(signedPreKeyId);
+  }
+}