Examples with MCRDatacenterException org.mycore.pi.exceptions.MCRDatacenterException used on opensource projects

Example 6 with MCRDatacenterException

use of org.mycore.pi.exceptions.MCRDatacenterException in project mycore by MyCoRe-Org.

the class MCRDataciteClient method getMediaList.

public List<Map.Entry<String, URI>> getMediaList(final MCRDigitalObjectIdentifier doiParam) throws MCRPersistentIdentifierException {
    ArrayList<Map.Entry<String, URI>> entries = new ArrayList<>();
    MCRDigitalObjectIdentifier doi = isTestPrefix() ? doiParam.toTestPrefix() : doiParam;
    URI requestURI = getRequestURI("/media/" + doi.asString());
    HttpGet httpGet = new HttpGet(requestURI);
    try (CloseableHttpClient httpClient = getHttpClient()) {
        CloseableHttpResponse response = httpClient.execute(httpGet);
        StatusLine statusLine = response.getStatusLine();
        switch(statusLine.getStatusCode()) {
            case HttpStatus.SC_OK:
                Scanner scanner = new Scanner(response.getEntity().getContent(), "UTF-8");
                while (scanner.hasNextLine()) {
                    String line = scanner.nextLine();
                    String[] parts = line.split("=", 2);
                    String mediaType = parts[0];
                    URI mediaURI = new URI(parts[1]);
                    entries.add(new AbstractMap.SimpleEntry<>(mediaType, mediaURI));
                }
                return entries;
            case HttpStatus.SC_UNAUTHORIZED:
                throw new MCRDatacenterAuthenticationException();
            case HttpStatus.SC_NOT_FOUND:
                throw new MCRIdentifierUnresolvableException(doi.asString(), doi.asString() + " is not resolvable! " + getStatusString(response));
            // return entries; // datacite says no media attached or doi does not exist (not sure what to do)
            default:
                throw new MCRDatacenterException(String.format(Locale.ENGLISH, "Datacenter-Error while set media-list for doi: \"%s\" : %s", doi.asString(), getStatusString(response)));
        }
    } catch (IOException e) {
        throw new MCRDatacenterException("Unknown error while set media list", e);
    } catch (URISyntaxException e) {
        throw new MCRDatacenterException("Could not parse media url!", e);
    }
}

Example 7 with MCRDatacenterException

use of org.mycore.pi.exceptions.MCRDatacenterException in project mycore by MyCoRe-Org.

the class MCRDataciteClient method resolveDOI.

public URI resolveDOI(final MCRDigitalObjectIdentifier doiParam) throws MCRPersistentIdentifierException {
    URI requestURI = getRequestURI("/doi/" + doiParam.asString());
    HttpGet get = new HttpGet(requestURI);
    try (CloseableHttpClient httpClient = getHttpClient()) {
        CloseableHttpResponse response = httpClient.execute(get);
        HttpEntity entity = response.getEntity();
        StatusLine statusLine = response.getStatusLine();
        switch(statusLine.getStatusCode()) {
            case HttpStatus.SC_OK:
                Scanner scanner = new Scanner(entity.getContent(), "UTF-8");
                String uriString = scanner.nextLine();
                return new URI(uriString);
            case HttpStatus.SC_NO_CONTENT:
                throw new MCRIdentifierUnresolvableException(doiParam.asString(), "The identifier " + doiParam.asString() + " is currently not resolvable");
            case HttpStatus.SC_NOT_FOUND:
                throw new MCRIdentifierUnresolvableException(doiParam.asString(), "The identifier " + doiParam.asString() + " was not found in the Datacenter!");
            case HttpStatus.SC_UNAUTHORIZED:
                throw new MCRDatacenterAuthenticationException();
            case HttpStatus.SC_INTERNAL_SERVER_ERROR:
                throw new MCRDatacenterException(String.format(Locale.ENGLISH, "Datacenter error while resolving doi: \"%s\" : %s", doiParam.asString(), getStatusString(response)));
            default:
                throw new MCRDatacenterException(String.format(Locale.ENGLISH, "Unknown error while resolving doi: \"%s\" : %s", doiParam.asString(), getStatusString(response)));
        }
    } catch (IOException | URISyntaxException ex) {
        throw new MCRDatacenterException(String.format(Locale.ENGLISH, "Unknown error while resolving doi: \"%s\"", doiParam.asString()), ex);
    }
}

Example 8 with MCRDatacenterException

use of org.mycore.pi.exceptions.MCRDatacenterException in project mycore by MyCoRe-Org.

the class MCRDataciteClient method resolveMetadata.

public Document resolveMetadata(final MCRDigitalObjectIdentifier doiParam) throws MCRPersistentIdentifierException {
    MCRDigitalObjectIdentifier doi = isTestPrefix() ? doiParam.toTestPrefix() : doiParam;
    URI requestURI = getRequestURI("/metadata/" + doi.asString());
    HttpGet get = new HttpGet(requestURI);
    try (CloseableHttpClient httpClient = getHttpClient()) {
        CloseableHttpResponse response = httpClient.execute(get);
        HttpEntity entity = response.getEntity();
        StatusLine statusLine = response.getStatusLine();
        switch(statusLine.getStatusCode()) {
            case HttpStatus.SC_OK:
                SAXBuilder builder = new SAXBuilder();
                return builder.build(entity.getContent());
            case HttpStatus.SC_UNAUTHORIZED:
                throw new MCRDatacenterAuthenticationException();
            case HttpStatus.SC_NO_CONTENT:
                throw new MCRIdentifierUnresolvableException(doi.asString(), "The identifier " + doi.asString() + " is currently not resolvable");
            case HttpStatus.SC_NOT_FOUND:
                throw new MCRIdentifierUnresolvableException(doi.asString(), "The identifier " + doi.asString() + " was not found!");
            case HttpStatus.SC_GONE:
                throw new MCRIdentifierUnresolvableException(doi.asString(), "The identifier " + doi.asString() + " was deleted!");
            default:
                throw new MCRDatacenterException("Unknown return status: " + getStatusString(response));
        }
    } catch (IOException | JDOMException e) {
        throw new MCRDatacenterException("Error while resolving metadata!", e);
    }
}