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session-android
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Code Issues 1 Projects Releases Wiki Activity

Add support for Job chains.

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pull/1/head
Greyson Parrelli 6 years ago
parent 1a50910910
commit 96c641c2a0
4 changed files with 177 additions and 42 deletions
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45
src/org/thoughtcrime/securesms/jobmanager/ChainParameters.java
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@ -0,0 +1,45 @@
package org.thoughtcrime.securesms.jobmanager;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import org.whispersystems.libsignal.util.guava.Optional;
public class ChainParameters {
private final String groupId;
private final boolean ignoreDuplicates;
private ChainParameters(@NonNull String groupId, boolean ignoreDuplicates) {
this.groupId = groupId;
this.ignoreDuplicates = ignoreDuplicates;
}
public Optional<String> getGroupId() {
return Optional.fromNullable(groupId);
}
public boolean shouldIgnoreDuplicates() {
return ignoreDuplicates;
}
public static class Builder {
private String groupId;
private boolean ignoreDuplicates;
public Builder setGroupId(@Nullable String groupId) {
this.groupId = groupId;
return this;
}
public Builder ignoreDuplicates(boolean ignore) {
this.ignoreDuplicates = ignore;
return this;
}
public ChainParameters build() {
return new ChainParameters(groupId, ignoreDuplicates);
}
}
}

47
src/org/thoughtcrime/securesms/jobmanager/Job.java
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@ -12,6 +12,7 @@ import org.thoughtcrime.securesms.jobmanager.requirements.NetworkRequirement;
import org.thoughtcrime.securesms.jobs.requirements.SqlCipherMigrationRequirement;
import org.thoughtcrime.securesms.logging.Log;
import org.thoughtcrime.securesms.service.GenericForegroundService;
import org.whispersystems.libsignal.util.guava.Optional;
import java.io.Serializable;
import java.util.Collections;
@ -33,6 +34,7 @@ public abstract class Job extends Worker implements Serializable {
static final String KEY_RETRY_COUNT = "Job_retry_count";
static final String KEY_RETRY_UNTIL = "Job_retry_until";
static final String KEY_SUBMIT_TIME = "Job_submit_time";
static final String KEY_FAILED = "Job_failed";
static final String KEY_REQUIRES_NETWORK = "Job_requires_network";
static final String KEY_REQUIRES_SQLCIPHER = "Job_requires_sqlcipher";
@ -86,26 +88,31 @@ public abstract class Job extends Worker implements Serializable {
try {
initialize(new SafeData(data));
if (withinRetryLimits(data)) {
if (requirementsMet(data)) {
if (needsForegroundService(data)) {
Log.i(TAG, "Running a foreground service with description '" + getDescription() + "' to aid in job execution." + logSuffix());
GenericForegroundService.startForegroundTask(getApplicationContext(), getDescription());
foregroundRunning = true;
}
onRun();
log("Successfully completed." + logSuffix());
return Result.success();
} else {
log("Retrying due to unmet requirements." + logSuffix());
return retry();
}
} else {
if (data.getBoolean(KEY_FAILED, false)) {
warn("Failing due to a failure earlier in the chain." + logSuffix());
return cancel();
}
if (!withinRetryLimits(data)) {
warn("Failing after hitting the retry limit." + logSuffix());
return cancel();
}
if (!requirementsMet(data)) {
log("Retrying due to unmet requirements." + logSuffix());
return retry();
}
if (needsForegroundService(data)) {
Log.i(TAG, "Running a foreground service with description '" + getDescription() + "' to aid in job execution." + logSuffix());
GenericForegroundService.startForegroundTask(getApplicationContext(), getDescription());
foregroundRunning = true;
}
onRun();
log("Successfully completed." + logSuffix());
return success();
} catch (Exception e) {
if (onShouldRetry(e)) {
log("Retrying after a retryable exception." + logSuffix(), e);
@ -197,6 +204,10 @@ public abstract class Job extends Worker implements Serializable {
return parameters;
}
private Result success() {
return Result.success();
}
private Result retry() {
onRetry();
return Result.retry();
@ -204,7 +215,7 @@ public abstract class Job extends Worker implements Serializable {
private Result cancel() {
onCanceled();
return Result.success();
return Result.success(new Data.Builder().putBoolean(KEY_FAILED, true).build());
}
private boolean requirementsMet(@NonNull Data data) {

120
src/org/thoughtcrime/securesms/jobmanager/JobManager.java
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@ -3,8 +3,14 @@ package org.thoughtcrime.securesms.jobmanager;
import android.content.Context;
import android.support.annotation.NonNull;
import com.annimon.stream.Stream;
import org.thoughtcrime.securesms.logging.Log;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
@ -16,6 +22,7 @@ import androidx.work.Data;
import androidx.work.ExistingWorkPolicy;
import androidx.work.NetworkType;
import androidx.work.OneTimeWorkRequest;
import androidx.work.WorkContinuation;
import androidx.work.WorkManager;
public class JobManager {
@ -36,7 +43,25 @@ public class JobManager {
this.workManager = workManager;
}
public Chain startChain(@NonNull Job job) {
return startChain(Collections.singletonList(job));
}
public Chain startChain(@NonNull List<? extends Job> jobs) {
return new Chain(jobs);
}
public void add(Job job) {
JobParameters jobParameters = job.getJobParameters();
if (jobParameters == null) {
throw new IllegalStateException("Jobs must have JobParameters at this stage. (" + job.getClass().getSimpleName() + ")");
}
startChain(job).enqueue(jobParameters.getSoloChainParameters());
}
private void enqueueChain(@NonNull Chain chain, @NonNull ChainParameters chainParameters) {
executor.execute(() -> {
try {
workManager.pruneWork().getResult().get();
@ -44,38 +69,85 @@ public class JobManager {
Log.w(TAG, "Failed to prune work.", e);
}
JobParameters jobParameters = job.getJobParameters();
List<List<Job>> jobListChain = chain.getJobListChain();
List<List<OneTimeWorkRequest>> requestListChain = Stream.of(jobListChain).map(jl -> Stream.of(jl).map(this::toWorkRequest).toList()).toList();
if (jobParameters == null) {
throw new IllegalStateException("Jobs must have JobParameters at this stage. (" + job.getClass().getSimpleName() + ")");
if (jobListChain.isEmpty()) {
throw new IllegalStateException("Enqueued an empty chain.");
}
Data.Builder dataBuilder = new Data.Builder().putInt(Job.KEY_RETRY_COUNT, jobParameters.getRetryCount())
.putLong(Job.KEY_RETRY_UNTIL, jobParameters.getRetryUntil())
.putLong(Job.KEY_SUBMIT_TIME, System.currentTimeMillis())
.putBoolean(Job.KEY_REQUIRES_NETWORK, jobParameters.requiresNetwork())
.putBoolean(Job.KEY_REQUIRES_SQLCIPHER, jobParameters.requiresSqlCipher());
Data data = job.serialize(dataBuilder);
OneTimeWorkRequest.Builder requestBuilder = new OneTimeWorkRequest.Builder(job.getClass())
.setInputData(data)
.setBackoffCriteria(BackoffPolicy.LINEAR, OneTimeWorkRequest.MIN_BACKOFF_MILLIS, TimeUnit.MILLISECONDS);
if (jobParameters.requiresNetwork()) {
requestBuilder.setConstraints(NETWORK_CONSTRAINT);
for (int i = 0; i < jobListChain.size(); i++) {
for (int j = 0; j < jobListChain.get(i).size(); j++) {
jobListChain.get(i).get(j).onSubmit(context, requestListChain.get(i).get(j).getId());
}
}
OneTimeWorkRequest request = requestBuilder.build();
job.onSubmit(context, request.getId());
WorkContinuation continuation;
String groupId = jobParameters.getGroupId();
if (groupId != null) {
ExistingWorkPolicy policy = jobParameters.shouldIgnoreDuplicates() ? ExistingWorkPolicy.KEEP : ExistingWorkPolicy.APPEND;
workManager.beginUniqueWork(groupId, policy, request).enqueue();
if (chainParameters.getGroupId().isPresent()) {
ExistingWorkPolicy policy = chainParameters.shouldIgnoreDuplicates() ? ExistingWorkPolicy.KEEP : ExistingWorkPolicy.APPEND;
continuation = workManager.beginUniqueWork(chainParameters.getGroupId().get(), policy, requestListChain.get(0));
} else {
workManager.beginWith(request).enqueue();
continuation = workManager.beginWith(requestListChain.get(0));
}
for (int i = 1; i < requestListChain.size(); i++) {
continuation = continuation.then(requestListChain.get(i));
}
continuation.enqueue();
});
}
private OneTimeWorkRequest toWorkRequest(@NonNull Job job) {
JobParameters jobParameters = job.getJobParameters();
if (jobParameters == null) {
throw new IllegalStateException("Jobs must have JobParameters at this stage. (" + job.getClass().getSimpleName() + ")");
}
Data.Builder dataBuilder = new Data.Builder().putInt(Job.KEY_RETRY_COUNT, jobParameters.getRetryCount())
.putLong(Job.KEY_RETRY_UNTIL, jobParameters.getRetryUntil())
.putLong(Job.KEY_SUBMIT_TIME, System.currentTimeMillis())
.putBoolean(Job.KEY_REQUIRES_NETWORK, jobParameters.requiresNetwork())
.putBoolean(Job.KEY_REQUIRES_SQLCIPHER, jobParameters.requiresSqlCipher());
Data data = job.serialize(dataBuilder);
OneTimeWorkRequest.Builder requestBuilder = new OneTimeWorkRequest.Builder(job.getClass())
.setInputData(data)
.setBackoffCriteria(BackoffPolicy.LINEAR, OneTimeWorkRequest.MIN_BACKOFF_MILLIS, TimeUnit.MILLISECONDS);
if (jobParameters.requiresNetwork()) {
requestBuilder.setConstraints(NETWORK_CONSTRAINT);
}
return requestBuilder.build();
}
public class Chain {
private final List<List<Job>> jobs = new LinkedList<>();
private Chain(@NonNull List<? extends Job> jobs) {
this.jobs.add(new ArrayList<>(jobs));
}
public Chain then(@NonNull Job job) {
return then(Collections.singletonList(job));
}
public Chain then(@NonNull List<Job> jobs) {
this.jobs.add(new ArrayList<>(jobs));
return this;
}
public void enqueue(@NonNull ChainParameters chainParameters) {
enqueueChain(this, chainParameters);
}
private List<List<Job>> getJobListChain() {
return jobs;
}
}
}

7
src/org/thoughtcrime/securesms/jobmanager/JobParameters.java
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@ -104,6 +104,13 @@ public class JobParameters implements Serializable {
return retryUntil;
}
public ChainParameters getSoloChainParameters() {
return new ChainParameters.Builder()
.setGroupId(groupId)
.ignoreDuplicates(ignoreDuplicates)
.build();
}
/**
* @return a builder used to construct JobParameters.
*/

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