Examples with Envelope i5.las2peer.api.persistency.Envelope used on opensource projects

Example 21 with Envelope

use of i5.las2peer.api.persistency.Envelope in project Distributed-Noracle-Backend by Distributed-Noracle.

the class NoracleQuestionRelationService method getQuestionRelation.

@Override
public QuestionRelation getQuestionRelation(String relationId) throws ServiceInvocationException {
    if (relationId == null || relationId.isEmpty()) {
        throw new InvocationBadArgumentException("No relation id given");
    }
    Envelope env;
    try {
        env = Context.get().requestEnvelope(getQuestionRelationEnvelopeIdentifier(relationId));
    } catch (EnvelopeAccessDeniedException e) {
        throw new ServiceAccessDeniedException("Envelope Access Denied");
    } catch (EnvelopeOperationFailedException e) {
        throw new InternalServiceException("Could not fetch relation envelope", e);
    } catch (EnvelopeNotFoundException e) {
        throw new ResourceNotFoundException("Relation Not Found");
    }
    QuestionRelation relation = (QuestionRelation) env.getContent();
    return relation;
}

Example 22 with Envelope

use of i5.las2peer.api.persistency.Envelope in project Distributed-Noracle-Backend by Distributed-Noracle.

the class NoracleQuestionRelationService method linkQuestionRelationToSpace.

public boolean linkQuestionRelationToSpace(String spaceId, String relationId) {
    int relationNumber;
    for (relationNumber = 1; relationNumber < MAX_RELATIONS_PER_SPACE; relationNumber++) {
        try {
            Context.get().requestEnvelope(buildSpaceQuestionRelationNumberId(spaceId, relationNumber));
        } catch (EnvelopeNotFoundException e) {
            // found free question number
            break;
        } catch (Exception e) {
        // XXX logging
        }
    }
    try {
        Envelope spaceQuestionRelationEnv = Context.get().createEnvelope(buildSpaceQuestionRelationNumberId(spaceId, relationNumber));
        spaceQuestionRelationEnv.setPublic();
        spaceQuestionRelationEnv.setContent(relationId);
        Context.get().storeEnvelope(spaceQuestionRelationEnv);
        return true;
    } catch (EnvelopeOperationFailedException | EnvelopeAccessDeniedException e) {
        // TODO exception handling
        e.printStackTrace();
    }
    return false;
}

Example 23 with Envelope

use of i5.las2peer.api.persistency.Envelope in project Distributed-Noracle-Backend by Distributed-Noracle.

the class NoracleVoteService method getAgentVote.

@Override
public Vote getAgentVote(String objectId, String agentId) throws ServiceInvocationException {
    String persEnvId = getAgentVoteEnvelopeIdentifier(agentId, objectId);
    try {
        Envelope persEnv = Context.get().requestEnvelope(persEnvId);
        VoteEntry voteEntry = (VoteEntry) persEnv.getContent();
        return voteEntry.getVote();
    } catch (EnvelopeAccessDeniedException e) {
        throw new InternalServiceException("Someone hijacked your vote envelope", e);
    } catch (EnvelopeNotFoundException e) {
        return new Vote(0, agentId);
    } catch (EnvelopeOperationFailedException e) {
        throw new InternalServiceException("Retrieving vote failed", e);
    }
}