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Merge pull request #616 from mderka/dns-options
Completes DnsRpc interface by adding methods and doc. Implements DefaultDnsRpc.
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191 changes: 191 additions & 0 deletions
191
gcloud-java-dns/src/main/java/com/google/gcloud/spi/DefaultDnsRpc.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| package com.google.gcloud.spi; | ||
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| import static com.google.gcloud.spi.DnsRpc.ListResult.of; | ||
| import static com.google.gcloud.spi.DnsRpc.Option.DNS_NAME; | ||
| import static com.google.gcloud.spi.DnsRpc.Option.NAME; | ||
| import static com.google.gcloud.spi.DnsRpc.Option.DNS_TYPE; | ||
| import static com.google.gcloud.spi.DnsRpc.Option.FIELDS; | ||
| import static com.google.gcloud.spi.DnsRpc.Option.PAGE_SIZE; | ||
| import static com.google.gcloud.spi.DnsRpc.Option.PAGE_TOKEN; | ||
| import static com.google.gcloud.spi.DnsRpc.Option.SORTING_ORDER; | ||
| import static java.net.HttpURLConnection.HTTP_NOT_FOUND; | ||
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| import com.google.api.client.http.HttpRequestInitializer; | ||
| import com.google.api.client.http.HttpTransport; | ||
| import com.google.api.client.json.jackson.JacksonFactory; | ||
| import com.google.api.services.dns.Dns; | ||
| import com.google.api.services.dns.model.Change; | ||
| import com.google.api.services.dns.model.ChangesListResponse; | ||
| import com.google.api.services.dns.model.ManagedZone; | ||
| import com.google.api.services.dns.model.ManagedZonesListResponse; | ||
| import com.google.api.services.dns.model.Project; | ||
| import com.google.api.services.dns.model.ResourceRecordSet; | ||
| import com.google.api.services.dns.model.ResourceRecordSetsListResponse; | ||
| import com.google.gcloud.dns.DnsException; | ||
| import com.google.gcloud.dns.DnsOptions; | ||
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|
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| import java.io.IOException; | ||
| import java.util.Map; | ||
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| /** | ||
| * A default implementation of the DnsRpc interface. | ||
| */ | ||
| public class DefaultDnsRpc implements DnsRpc { | ||
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| private static final String SORT_BY = "changeSequence"; | ||
| private final Dns dns; | ||
| private final DnsOptions options; | ||
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| private static DnsException translate(IOException exception) { | ||
| return new DnsException(exception); | ||
| } | ||
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| /** | ||
| * Constructs an instance of this rpc client with provided {@link DnsOptions}. | ||
| */ | ||
| public DefaultDnsRpc(DnsOptions options) { | ||
| HttpTransport transport = options.httpTransportFactory().create(); | ||
| HttpRequestInitializer initializer = options.httpRequestInitializer(); | ||
| this.dns = new Dns.Builder(transport, new JacksonFactory(), initializer) | ||
| .setRootUrl(options.host()) | ||
| .setApplicationName(options.applicationName()) | ||
| .build(); | ||
| this.options = options; | ||
| } | ||
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| @Override | ||
| public ManagedZone create(ManagedZone zone) throws DnsException { | ||
| try { | ||
| return dns.managedZones().create(this.options.projectId(), zone).execute(); | ||
| } catch (IOException ex) { | ||
| throw translate(ex); | ||
| } | ||
| } | ||
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| @Override | ||
| public ManagedZone getZone(String zoneName, Map<Option, ?> options) throws DnsException { | ||
| // just fields option | ||
| try { | ||
| return dns.managedZones().get(this.options.projectId(), zoneName) | ||
| .setFields(FIELDS.getString(options)) | ||
| .execute(); | ||
| } catch (IOException ex) { | ||
| DnsException serviceException = translate(ex); | ||
| if (serviceException.code() == HTTP_NOT_FOUND) { | ||
| return null; | ||
| } | ||
| throw serviceException; | ||
| } | ||
| } | ||
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| @Override | ||
| public ListResult<ManagedZone> listZones(Map<Option, ?> options) throws DnsException { | ||
| // fields, page token, page size | ||
| try { | ||
| ManagedZonesListResponse zoneList = dns.managedZones().list(this.options.projectId()) | ||
| .setFields(FIELDS.getString(options)) | ||
| .setMaxResults(PAGE_SIZE.getInt(options)) | ||
| .setDnsName(DNS_NAME.getString(options)) | ||
| .setPageToken(PAGE_TOKEN.getString(options)) | ||
| .execute(); | ||
| return of(zoneList.getNextPageToken(), zoneList.getManagedZones()); | ||
| } catch (IOException ex) { | ||
| throw translate(ex); | ||
| } | ||
| } | ||
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| @Override | ||
| public boolean deleteZone(String zoneName) throws DnsException { | ||
| try { | ||
| dns.managedZones().delete(this.options.projectId(), zoneName).execute(); | ||
| return true; | ||
| } catch (IOException ex) { | ||
| DnsException serviceException = translate(ex); | ||
| if (serviceException.code() == HTTP_NOT_FOUND) { | ||
| return false; | ||
| } | ||
| throw serviceException; | ||
| } | ||
| } | ||
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| @Override | ||
| public ListResult<ResourceRecordSet> listDnsRecords(String zoneName, Map<Option, ?> options) | ||
| throws DnsException { | ||
| // options are fields, page token, dns name, type | ||
| try { | ||
| ResourceRecordSetsListResponse response = dns.resourceRecordSets() | ||
| .list(this.options.projectId(), zoneName) | ||
| .setFields(FIELDS.getString(options)) | ||
| .setPageToken(PAGE_TOKEN.getString(options)) | ||
| .setMaxResults(PAGE_SIZE.getInt(options)) | ||
| .setName(NAME.getString(options)) | ||
| .setType(DNS_TYPE.getString(options)) | ||
| .execute(); | ||
| return of(response.getNextPageToken(), response.getRrsets()); | ||
| } catch (IOException ex) { | ||
| throw translate(ex); | ||
| } | ||
| } | ||
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| @Override | ||
| public Project getProject(Map<Option, ?> options) throws DnsException { | ||
| try { | ||
| return dns.projects().get(this.options.projectId()) | ||
| .setFields(FIELDS.getString(options)).execute(); | ||
| } catch (IOException ex) { | ||
| throw translate(ex); | ||
| } | ||
| } | ||
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| @Override | ||
| public Change applyChangeRequest(String zoneName, Change changeRequest, Map<Option, ?> options) | ||
| throws DnsException { | ||
| try { | ||
| return dns.changes().create(this.options.projectId(), zoneName, changeRequest) | ||
| .setFields(FIELDS.getString(options)) | ||
| .execute(); | ||
| } catch (IOException ex) { | ||
| throw translate(ex); | ||
| } | ||
| } | ||
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| @Override | ||
| public Change getChangeRequest(String zoneName, String changeRequestId, Map<Option, ?> options) | ||
| throws DnsException { | ||
| try { | ||
| return dns.changes().get(this.options.projectId(), zoneName, changeRequestId) | ||
| .setFields(FIELDS.getString(options)) | ||
| .execute(); | ||
| } catch (IOException ex) { | ||
| DnsException serviceException = translate(ex); | ||
| if (serviceException.code() == HTTP_NOT_FOUND) { | ||
| if (serviceException.location().equals("entity.parameters.changeId")) { | ||
| // the change id was not found, but the zone exists | ||
| return null; | ||
| } | ||
| // the zone does not exist, so throw an exception | ||
| } | ||
| throw serviceException; | ||
| } | ||
| } | ||
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| @Override | ||
| public ListResult<Change> listChangeRequests(String zoneName, Map<Option, ?> options) | ||
| throws DnsException { | ||
| // options are fields, page token, page size, sort order | ||
| try { | ||
| Dns.Changes.List request = dns.changes().list(this.options.projectId(), zoneName) | ||
| .setFields(FIELDS.getString(options)) | ||
| .setMaxResults(PAGE_SIZE.getInt(options)) | ||
| .setPageToken(PAGE_TOKEN.getString(options)); | ||
| if (SORTING_ORDER.getString(options) != null) { | ||
| // todo check and change if more sorting options are implemented, issue #604 | ||
| request = request.setSortBy(SORT_BY).setSortOrder(SORTING_ORDER.getString(options)); | ||
| } | ||
| ChangesListResponse response = request.execute(); | ||
| return ListResult.of(response.getNextPageToken(), response.getChanges()); | ||
| } catch (IOException ex) { | ||
| throw translate(ex); | ||
| } | ||
| } | ||
| } |
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