Move responsibility for Context injection out of JavaSerializer.

// FREEBIE

jobqueue/src/androidTest/java/org/whispersystems/jobqueue/JobManagerTest.java

@@ -122,7 +122,7 @@ public class JobManagerTest extends AndroidTestCase {
     PersistentTestJob         testJob     = new PersistentTestJob(requirement);
     JobManager                jobManager  = JobManager.newBuilder(getContext())
                                                       .withName("persistent-requirement-test3")
-                                                      .withJobSerializer(new JavaJobSerializer(getContext()))
+                                                      .withJobSerializer(new JavaJobSerializer())
                                                       .withConsumerThreads(1)
                                                       .build();
 
@@ -138,7 +138,7 @@ public class JobManagerTest extends AndroidTestCase {
 
     jobManager = JobManager.newBuilder(getContext())
                            .withName("persistent-requirement-test3")
-                           .withJobSerializer(new JavaJobSerializer(getContext()))
+                           .withJobSerializer(new JavaJobSerializer())
                            .withConsumerThreads(1)
                            .build();
 
@@ -151,7 +151,7 @@ public class JobManagerTest extends AndroidTestCase {
     PersistentTestJob         testJob     = new PersistentTestJob(requirement, keys);
     JobManager                jobManager  = JobManager.newBuilder(getContext())
                                                       .withName("persistent-requirement-test4")
-                                                      .withJobSerializer(new JavaJobSerializer(getContext()))
+                                                      .withJobSerializer(new JavaJobSerializer())
                                                       .withConsumerThreads(1)
                                                       .build();
 
@@ -168,7 +168,7 @@ public class JobManagerTest extends AndroidTestCase {
     PersistentRequirement.getInstance().setPresent(true);
     jobManager = JobManager.newBuilder(getContext())
                            .withName("persistent-requirement-test4")
-                           .withJobSerializer(new JavaJobSerializer(getContext()))
+                           .withJobSerializer(new JavaJobSerializer())
                            .withConsumerThreads(1)
                            .build();
 

jobqueue/src/main/java/org/whispersystems/jobqueue/dependencies/ContextDependent.java

@@ -18,6 +18,10 @@ package org.whispersystems.jobqueue.dependencies;
 
 import android.content.Context;
 
+/**
+ * Any Job or Requirement that depends on {@link android.content.Context} can implement this
+ * interface to receive a Context after being deserialized.
+ */
 public interface ContextDependent {
   public void setContext(Context context);
 }

jobqueue/src/main/java/org/whispersystems/jobqueue/persistence/JavaJobSerializer.java

@@ -16,13 +16,10 @@
  */
 package org.whispersystems.jobqueue.persistence;
 
-import android.content.Context;
 import android.util.Base64;
 
 import org.whispersystems.jobqueue.EncryptionKeys;
 import org.whispersystems.jobqueue.Job;
-import org.whispersystems.jobqueue.dependencies.ContextDependent;
-import org.whispersystems.jobqueue.requirements.Requirement;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
@@ -36,11 +33,7 @@ import java.io.ObjectOutputStream;
  */
 public class JavaJobSerializer implements JobSerializer {
 
-  private final Context context;
-
-  public JavaJobSerializer(Context context) {
-    this.context = context;
-  }
+  public JavaJobSerializer() {}
 
   @Override
   public String serialize(Job job) throws IOException {
@@ -57,21 +50,7 @@ public class JavaJobSerializer implements JobSerializer {
       ByteArrayInputStream bais = new ByteArrayInputStream(Base64.decode(serialized, Base64.NO_WRAP));
       ObjectInputStream    ois  = new ObjectInputStream(bais);
 
-      Job job = (Job)ois.readObject();
-
-      if (job instanceof ContextDependent) {
-        ((ContextDependent)job).setContext(context);
-      }
-
-      for (Requirement requirement : job.getRequirements()) {
-        if (requirement instanceof ContextDependent) {
-          ((ContextDependent)requirement).setContext(context);
-        }
-      }
-
-      job.setEncryptionKeys(keys);
-
-      return job;
+      return (Job)ois.readObject();
     } catch (ClassNotFoundException e) {
       throw new IOException(e);
     }

jobqueue/src/main/java/org/whispersystems/jobqueue/persistence/PersistentStorage.java

@@ -25,7 +25,9 @@ import android.util.Log;
 
 import org.whispersystems.jobqueue.EncryptionKeys;
 import org.whispersystems.jobqueue.Job;
+import org.whispersystems.jobqueue.dependencies.ContextDependent;
 import org.whispersystems.jobqueue.dependencies.DependencyInjector;
+import org.whispersystems.jobqueue.requirements.Requirement;
 
 import java.io.IOException;
 import java.util.LinkedList;
@@ -43,6 +45,7 @@ public class PersistentStorage {
   private static final String DATABASE_CREATE = String.format("CREATE TABLE %s (%s INTEGER PRIMARY KEY, %s TEXT NOT NULL, %s INTEGER DEFAULT 0);",
                                                               TABLE_NAME, ID, ITEM, ENCRYPTED);
 
+  private final Context            context;
   private final DatabaseHelper     databaseHelper;
   private final JobSerializer      jobSerializer;
   private final DependencyInjector dependencyInjector;
@@ -52,6 +55,7 @@ public class PersistentStorage {
                            DependencyInjector dependencyInjector)
   {
     this.databaseHelper     = new DatabaseHelper(context, "_jobqueue-" + name);
+    this.context            = context;
     this.jobSerializer      = serializer;
     this.dependencyInjector = dependencyInjector;
   }
@@ -90,10 +94,8 @@ public class PersistentStorage {
           Job job = jobSerializer.deserialize(keys, encrypted, item);
 
           job.setPersistentId(id);
-
-          if (dependencyInjector != null) {
-            dependencyInjector.injectDependencies(job);
-          }
+          job.setEncryptionKeys(keys);
+          injectDependencies(job);
 
           results.add(job);
         } catch (IOException e) {
@@ -109,12 +111,27 @@ public class PersistentStorage {
     return results;
   }
 
-
   public void remove(long id) {
     databaseHelper.getWritableDatabase()
                   .delete(TABLE_NAME, ID + " = ?", new String[] {String.valueOf(id)});
   }
 
+  private void injectDependencies(Job job) {
+    if (job instanceof ContextDependent) {
+      ((ContextDependent)job).setContext(context);
+    }
+
+    for (Requirement requirement : job.getRequirements()) {
+      if (requirement instanceof ContextDependent) {
+        ((ContextDependent)requirement).setContext(context);
+      }
+    }
+
+    if (dependencyInjector != null) {
+      dependencyInjector.injectDependencies(job);
+    }
+  }
+
   private static class DatabaseHelper extends SQLiteOpenHelper {
 
     public DatabaseHelper(Context context, String name) {

src/org/thoughtcrime/securesms/ApplicationContext.java

@@ -79,7 +79,7 @@ public class ApplicationContext extends Application implements DependencyInjecto
     this.jobManager = JobManager.newBuilder(this)
                                 .withName("TextSecureJobs")
                                 .withDependencyInjector(this)
-                                .withJobSerializer(new EncryptingJobSerializer(this))
+                                .withJobSerializer(new EncryptingJobSerializer())
                                 .withRequirementProviders(new MasterSecretRequirementProvider(this),
                                                           new ServiceRequirementProvider(this),
                                                           new NetworkRequirementProvider(this))

src/org/thoughtcrime/securesms/jobs/persistence/EncryptingJobSerializer.java

@@ -1,15 +1,13 @@
 package org.thoughtcrime.securesms.jobs.persistence;
 
-import android.content.Context;
-
+import org.thoughtcrime.securesms.crypto.MasterCipher;
+import org.thoughtcrime.securesms.crypto.MasterSecret;
 import org.thoughtcrime.securesms.util.ParcelUtil;
 import org.whispersystems.jobqueue.EncryptionKeys;
 import org.whispersystems.jobqueue.Job;
 import org.whispersystems.jobqueue.persistence.JavaJobSerializer;
 import org.whispersystems.jobqueue.persistence.JobSerializer;
 import org.whispersystems.libaxolotl.InvalidMessageException;
-import org.thoughtcrime.securesms.crypto.MasterCipher;
-import org.thoughtcrime.securesms.crypto.MasterSecret;
 
 import java.io.IOException;
 
@@ -17,8 +15,8 @@ public class EncryptingJobSerializer implements JobSerializer {
 
   private final JavaJobSerializer delegate;
 
-  public EncryptingJobSerializer(Context context) {
-    this.delegate = new JavaJobSerializer(context);
+  public EncryptingJobSerializer() {
+    this.delegate = new JavaJobSerializer();
   }
 
   @Override