74 lines
2.2 KiB
Java
74 lines
2.2 KiB
Java
package org.gcube.data.access.storagehub.storage.backend.impl;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Properties;
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import java.util.UUID;
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import jakarta.annotation.PostConstruct;
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import jakarta.inject.Singleton;
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import org.gcube.common.storagehub.model.Constants;
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import org.gcube.common.storagehub.model.Metadata;
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import org.gcube.common.storagehub.model.exceptions.InvalidCallParameters;
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import org.gcube.common.storagehub.model.items.nodes.PayloadBackend;
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import org.gcube.common.storagehub.model.storages.StorageBackend;
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import org.gcube.common.storagehub.model.storages.StorageBackendFactory;
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@Singleton
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public class GcubeDefaultS3StorageBackendFactory implements StorageBackendFactory {
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private StorageBackend singleton;
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private static final String PROP_PREFIX = "default.";
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@PostConstruct
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public void init(){
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S3Backend s3Backend = new S3Backend(new PayloadBackend(getName(), getParameters()), (String) -> UUID.randomUUID().toString());
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s3Backend.setPayloadConfiguration(new PayloadBackend(getName(),null));
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this.singleton = s3Backend;
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}
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@Override
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public String getName() {
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return Constants.DEFAULT_S3_STORAGE;
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}
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@Override
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public boolean isSystemStorage() {
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return true;
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}
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@Override
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public StorageBackend create(PayloadBackend payloadConfiguration) throws InvalidCallParameters {
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if (payloadConfiguration.getParameters().isEmpty())
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return singleton;
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throw new InvalidCallParameters("S3 created with not empty parameters");
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}
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private Metadata getParameters(){
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try (InputStream input = GcubeDefaultS3StorageBackendFactory.class.getClassLoader().getResourceAsStream("storage-settings.properties")) {
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Properties prop = new Properties();
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prop.load(input);
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Map<String, Object> params = new HashMap<String, Object>();
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prop.forEach((k,v) -> { if (k.toString().startsWith(PROP_PREFIX)) params.put(k.toString().replace(PROP_PREFIX, ""), v);});
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return new Metadata(params);
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} catch (IOException ex) {
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throw new RuntimeException("error initializing S3", ex);
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}
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}
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}
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