net.ravendb.client.documents.operations.backups.BackupOperation Maven / Gradle / Ivy

Go to download
package net.ravendb.client.documents.operations.backups;

import com.fasterxml.jackson.core.JsonGenerator;
import net.ravendb.client.documents.conventions.DocumentConventions;
import net.ravendb.client.documents.operations.IMaintenanceOperation;
import net.ravendb.client.documents.operations.OperationIdResult;
import net.ravendb.client.http.RavenCommand;
import net.ravendb.client.http.ServerNode;
import net.ravendb.client.json.ContentProviderHttpEntity;
import net.ravendb.client.primitives.Reference;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.entity.ContentType;

import java.io.IOException;

public class BackupOperation implements IMaintenanceOperation {
    private final BackupConfiguration _backupConfiguration;
    private final String _nodeTag;

    public BackupOperation(BackupConfiguration backupConfiguration) {
        this(backupConfiguration, null);
    }

    public BackupOperation(BackupConfiguration backupConfiguration, String nodeTag) {
        if (backupConfiguration == null) {
            throw new IllegalArgumentException("BackupConfiguration cannot be null");
        }

        _backupConfiguration = backupConfiguration;
        _nodeTag = nodeTag;
    }

    @Override
    public RavenCommand getCommand(DocumentConventions conventions) {
        return new BackupCommand(_backupConfiguration, _nodeTag);
    }

    private static class BackupCommand extends RavenCommand {

        private final BackupConfiguration _backupConfiguration;

        @Override
        public boolean isReadRequest() {
            return false;
        }

        public BackupCommand(BackupConfiguration backupConfiguration) {
            this(backupConfiguration, null);
        }

        public BackupCommand(BackupConfiguration backupConfiguration, String nodeTag) {
            super(OperationIdResult.class);
            _backupConfiguration = backupConfiguration;
            selectedNodeTag = nodeTag;
        }

        @Override
        public HttpRequestBase createRequest(ServerNode node, Reference url) {
            url.value = node.getUrl() + "/databases/" + node.getDatabase() + "/admin/backup";

            HttpPost request = new HttpPost();
            request.setEntity(new ContentProviderHttpEntity(outputStream -> {
                try (JsonGenerator generator = mapper.getFactory().createGenerator(outputStream)) {
                    mapper.writeValue(generator, _backupConfiguration);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }, ContentType.APPLICATION_JSON));

            return request;
        }

        @Override
        public void setResponse(String response, boolean fromCache) throws IOException {
            if (response == null) {
                throwInvalidResponse();
            }

            StartBackupOperationResult result = mapper.readValue(response, StartBackupOperationResult.class);
            OperationIdResult operationIdResult = mapper.readValue(response, OperationIdResult.class);

            // OperationNodeTag used to fetch operation status
            if (operationIdResult.getOperationNodeTag() == null) {
                operationIdResult.setOperationNodeTag(result.getResponsibleNode());
            }

            this.result = operationIdResult;
        }
    }
}