1 files changed, 85 insertions, 0 deletions
diff --git a/PrinterRecommendationExample/app/src/main/java/com/android/discovery/recommendation/ServiceRecommendationPlugin.java b/PrinterRecommendationExample/app/src/main/java/com/android/discovery/recommendation/ServiceRecommendationPlugin.java
new file mode 100644
index 0000000..fcb7ad0
--- /dev/null
+++ b/PrinterRecommendationExample/app/src/main/java/com/android/discovery/recommendation/ServiceRecommendationPlugin.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.discovery.recommendation;
+
+import android.content.Context;
+import android.net.nsd.NsdManager;
+import android.net.nsd.NsdServiceInfo;
+import android.support.annotation.NonNull;
+import android.text.TextUtils;
+
+public abstract class ServiceRecommendationPlugin implements PrintServicePlugin, ServiceListener.Observer {
+
+    protected static final String PDL_ATTRIBUTE = "pdl";
+
+    protected final Object mLock = new Object();
+    protected PrinterDiscoveryCallback mCallback = null;
+    protected final ServiceListener mListener;
+    protected final NsdManager mNSDManager;
+    protected final VendorInfo mVendorInfo;
+    private final int mVendorStringID;
+
+    protected ServiceRecommendationPlugin(Context context, int vendorStringID, VendorInfo vendorInfo, String[] services) {
+        mNSDManager = (NsdManager)context.getSystemService(Context.NSD_SERVICE);
+        mVendorStringID = vendorStringID;
+        mVendorInfo = vendorInfo;
+        mListener = new ServiceListener(context, this, services);
+    }
+
+    @Override
+    public int getName() {
+        return mVendorStringID;
+    }
+
+    @NonNull
+    @Override
+    public CharSequence getPackageName() {
+        return mVendorInfo.mPackageName;
+    }
+
+    @Override
+    public void start(@NonNull PrinterDiscoveryCallback callback) throws Exception {
+        synchronized (mLock) {
+            mCallback = callback;
+        }
+        mListener.start();
+    }
+
+    @Override
+    public void stop() throws Exception {
+        synchronized (mLock) {
+            mCallback = null;
+        }
+        mListener.stop();
+    }
+
+    @Override
+    public void dataSetChanged() {
+        synchronized (mLock) {
+            if (mCallback != null) mCallback.onChanged(getCount());
+        }
+    }
+
+    @Override
+    public boolean matchesCriteria(String vendor, NsdServiceInfo nsdServiceInfo) {
+        return TextUtils.equals(vendor, mVendorInfo.mVendorID);
+    }
+
+    public int getCount() {
+        return mListener.getCount().second;
+    }
+}