won.protocol.rest.LinkedDataRestClientHttps.java Source code

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Here is the source code for won.protocol.rest.LinkedDataRestClientHttps.java

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/*
 * Copyright 2012  Research Studios Austria Forschungsges.m.b.H.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package won.protocol.rest;

import com.hp.hpl.jena.query.Dataset;
import org.apache.http.conn.ssl.TrustStrategy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.web.client.RestTemplate;
import won.cryptography.service.CryptographyUtils;
import won.cryptography.service.KeyStoreService;
import won.cryptography.service.TrustStoreService;
import won.cryptography.ssl.PrivateKeyStrategyGenerator;

import javax.annotation.PostConstruct;
import java.net.URI;

/**
 * User: ypanchenko
 * Date: 07.10.15
 */
public class LinkedDataRestClientHttps extends LinkedDataRestClient {

    private final Logger logger = LoggerFactory.getLogger(getClass());

    private RestTemplate restTemplateWithDefaultWebId;
    private HttpEntity entity;
    private HttpMessageConverter datasetConverter;

    private Integer readTimeout;
    private Integer connectionTimeout;

    private PrivateKeyStrategyGenerator privateKeyStrategyGenerator;
    private KeyStoreService keyStoreService;
    private TrustStoreService trustStoreService;
    private TrustStrategy trustStrategy;

    public LinkedDataRestClientHttps(KeyStoreService keyStoreService,
            PrivateKeyStrategyGenerator privateKeyStrategyGenerator, TrustStoreService trustStoreService,
            TrustStrategy trustStrategy) {
        this.readTimeout = 10000;
        this.connectionTimeout = 10000; //DEF. TIMEOUT IS 10sec
        this.keyStoreService = keyStoreService;
        this.privateKeyStrategyGenerator = privateKeyStrategyGenerator;
        this.trustStoreService = trustStoreService;
        this.trustStrategy = trustStrategy;
    }

    @PostConstruct
    public void initialize() {
        datasetConverter = new RdfDatasetConverter();
        HttpHeaders headers = new HttpHeaders();
        headers.setAccept(datasetConverter.getSupportedMediaTypes());
        entity = new HttpEntity(headers);

        try {
            restTemplateWithDefaultWebId = createRestTemplateForReadingLinkedData(
                    this.keyStoreService.getDefaultAlias());
        } catch (Exception e) {
            logger.error("Failed to create ssl tofu rest template", e);
            throw new RuntimeException(e);
        }
    }

    private RestTemplate createRestTemplateForReadingLinkedData(String webID) throws Exception {
        RestTemplate template = CryptographyUtils.createSslRestTemplate(
                this.keyStoreService.getUnderlyingKeyStore(), this.keyStoreService.getPassword(),
                privateKeyStrategyGenerator.createPrivateKeyStrategy(webID),
                this.trustStoreService.getUnderlyingKeyStore(), this.trustStrategy, readTimeout, connectionTimeout);
        template.getMessageConverters().add(datasetConverter);
        return template;
    }

    @Override
    public Dataset readResourceData(URI resourceURI, final URI requesterWebID) {

        HttpMessageConverter datasetConverter = new RdfDatasetConverter();
        RestTemplate restTemplate;
        try {
            restTemplate = getRestTemplateForReadingLinkedData(requesterWebID.toString());
        } catch (Exception e) {
            logger.error("Failed to create ssl tofu rest template", e);
            throw new RuntimeException(e);
        }
        restTemplate.getMessageConverters().add(datasetConverter);

        return super.readResourceData(resourceURI, restTemplate, entity);
    }

    private RestTemplate getRestTemplateForReadingLinkedData(String webID) throws Exception {

        if (webID.equals(keyStoreService.getDefaultAlias())) {
            return restTemplateWithDefaultWebId;
        }
        return createRestTemplateForReadingLinkedData(webID);
    }

    @Override
    public Dataset readResourceData(final URI resourceURI) {
        return super.readResourceData(resourceURI, restTemplateWithDefaultWebId, entity);
    }

    public void setReadTimeout(final Integer readTimeout) {
        this.readTimeout = readTimeout;
    }

    public void setConnectionTimeout(final Integer connectionTimeout) {
        this.connectionTimeout = connectionTimeout;
    }
}