ImportKeys: Extract interface and refactoring

ImportKeys: Extract interface and refactoring

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ImportOperation.java

@@ -19,20 +19,6 @@
 package org.sufficientlysecure.keychain.operations;
 
 
-import java.io.IOException;
-import java.net.Proxy;
-import java.util.ArrayList;
-import java.util.GregorianCalendar;
-import java.util.Iterator;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.ExecutorCompletionService;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.ThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicBoolean;
-
 import android.content.Context;
 import android.support.annotation.NonNull;
 
@@ -57,13 +43,27 @@ import org.sufficientlysecure.keychain.service.ContactSyncAdapterService;
 import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
+import org.sufficientlysecure.keychain.util.IteratorWithSize;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.ParcelableFileCache;
-import org.sufficientlysecure.keychain.util.ParcelableFileCache.IteratorWithSize;
 import org.sufficientlysecure.keychain.util.Preferences;
 import org.sufficientlysecure.keychain.util.ProgressScaler;
 import org.sufficientlysecure.keychain.util.orbot.OrbotHelper;
 
+import java.io.IOException;
+import java.net.Proxy;
+import java.util.ArrayList;
+import java.util.GregorianCalendar;
+import java.util.Iterator;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorCompletionService;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+
 /**
  * An operation class which implements high level import
  * operations.
@@ -85,6 +85,8 @@ public class ImportOperation extends BaseOperation<ImportKeyringParcel> {
 
     public static final int MAX_THREADS = 10;
 
+    public static final String CACHE_FILE_NAME = "key_import.pcl";
+
     public ImportOperation(Context context, ProviderHelper providerHelper, Progressable
             progressable) {
         super(context, providerHelper, progressable);
@@ -430,9 +432,8 @@ public class ImportOperation extends BaseOperation<ImportKeyringParcel> {
         ImportKeyResult result;
 
         if (keyList == null) {// import from file, do serially
-            ParcelableFileCache<ParcelableKeyRing> cache = new ParcelableFileCache<>(mContext,
+            ParcelableFileCache<ParcelableKeyRing> cache =
-                    "key_import.pcl");
+                    new ParcelableFileCache<>(mContext, CACHE_FILE_NAME);
-
             result = serialKeyRingImport(cache, null, null);
         } else {
             Proxy proxy;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java

@@ -61,9 +61,9 @@ import org.sufficientlysecure.keychain.provider.KeychainContract.UpdatedKeys;
 import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.util.IterableIterator;
+import org.sufficientlysecure.keychain.util.IteratorWithSize;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.ParcelableFileCache;
-import org.sufficientlysecure.keychain.util.ParcelableFileCache.IteratorWithSize;
 import org.sufficientlysecure.keychain.util.Preferences;
 import org.sufficientlysecure.keychain.util.ProgressFixedScaler;
 import org.sufficientlysecure.keychain.util.ProgressScaler;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysActivity.java

@@ -38,6 +38,7 @@ import org.sufficientlysecure.keychain.keyimport.processing.CloudLoaderState;
 import org.sufficientlysecure.keychain.keyimport.processing.ImportKeysListener;
 import org.sufficientlysecure.keychain.keyimport.processing.ImportKeysOperationCallback;
 import org.sufficientlysecure.keychain.keyimport.processing.LoaderState;
+import org.sufficientlysecure.keychain.operations.ImportOperation;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
 import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
 import org.sufficientlysecure.keychain.ui.base.BaseActivity;
@@ -351,25 +352,20 @@ public class ImportKeysActivity extends BaseActivity implements ImportKeysListen
 
         Log.d(Constants.TAG, "importKeys started");
         if (loaderState instanceof BytesLoaderState) {
-            // get DATA from selected key entries
-            ParcelableFileCache.IteratorWithSize<ParcelableKeyRing> entries = listFragment.getData();
-
             // instead of giving the entries by Intent extra, cache them into a
             // file to prevent Java Binder problems on heavy imports
             // read FileImportCache for more info.
             try {
                 // We parcel this iteratively into a file - anything we can
                 // display here, we should be able to import.
-                ParcelableFileCache<ParcelableKeyRing> cache = new ParcelableFileCache<>(this, "key_import.pcl");
+                ParcelableFileCache<ParcelableKeyRing> cache =
-                cache.writeCache(entries);
+                        new ParcelableFileCache<>(this, ImportOperation.CACHE_FILE_NAME);
+                cache.writeCache(listFragment.getData());
             } catch (IOException e) {
                 Log.e(Constants.TAG, "Problem writing cache file", e);
                 Notify.create(this, "Problem writing cache file!", Notify.Style.ERROR).show();
                 return;
             }
-
-            keyList = null;
-            keyserver = null;
         } else if (loaderState instanceof CloudLoaderState) {
             CloudLoaderState sls = (CloudLoaderState) loaderState;
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysListFragment.java

@@ -50,8 +50,8 @@ import org.sufficientlysecure.keychain.operations.results.GetKeyResult;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
 import org.sufficientlysecure.keychain.ui.adapter.ImportKeysAdapter;
 import org.sufficientlysecure.keychain.ui.util.PermissionsUtil;
+import org.sufficientlysecure.keychain.util.IteratorWithSize;
 import org.sufficientlysecure.keychain.util.Log;
-import org.sufficientlysecure.keychain.util.ParcelableFileCache.IteratorWithSize;
 import org.sufficientlysecure.keychain.util.ParcelableProxy;
 import org.sufficientlysecure.keychain.util.Preferences;
 import org.sufficientlysecure.keychain.util.orbot.OrbotHelper;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/SafeSlingerActivity.java

@@ -30,6 +30,7 @@ import android.widget.NumberPicker;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
+import org.sufficientlysecure.keychain.operations.ImportOperation;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
@@ -141,7 +142,7 @@ public class SafeSlingerActivity extends BaseActivity
                 // We parcel this iteratively into a file - anything we can
                 // display here, we should be able to import.
                 ParcelableFileCache<ParcelableKeyRing> cache =
-                        new ParcelableFileCache<>(this, "key_import.pcl");
+                        new ParcelableFileCache<>(this, ImportOperation.CACHE_FILE_NAME);
                 cache.writeCache(it.size(), it.iterator());
 
                 mOperationHelper =

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/IteratorWithSize.java

@@ -0,0 +1,17 @@
+package org.sufficientlysecure.keychain.util;
+
+import java.util.Iterator;
+
+/**
+ * An extended iterator interface, which knows the total number of its entries beforehand.
+ */
+public interface IteratorWithSize<E> extends Iterator<E> {
+
+    /**
+     * Returns the total number of entries in this iterator.
+     *
+     * @return the number of entries in this iterator.
+     */
+    int getSize();
+
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/ParcelableFileCache.java

@@ -216,12 +216,4 @@ public class ParcelableFileCache<E extends Parcelable> {
         return tempFile.delete();
     }
 
-    /** As the name implies, this is an extended iterator interface, which
-     * knows the total number of its entries beforehand.
-     */
-    public static interface IteratorWithSize<E> extends Iterator<E> {
-        /** Returns the number of total entries in this iterator. */
-        int getSize();
-    }
-
 }