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/*
* Copyright (c) 2010-2015, Isode Limited, London, England.
* All rights reserved.
*/
package com.isode.stroke.disco;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import com.isode.stroke.base.ByteArray;
import com.isode.stroke.crypto.CryptoProvider;
import com.isode.stroke.elements.CapsInfo;
import com.isode.stroke.elements.DiscoInfo;
import com.isode.stroke.elements.Form;
import com.isode.stroke.elements.FormField;
import com.isode.stroke.stringcodecs.Base64;
public class CapsInfoGenerator {
private String node_ = "";
private CryptoProvider crypto_;
private final static Comparator<FormField> compareFields = new Comparator<FormField>() {
@Override
public int compare(FormField lhs, FormField rhs) {
return lhs.getName().compareTo(rhs.getName());
}
};
CapsInfoGenerator(final String node, CryptoProvider crypto) {
this.node_ = node;
this.crypto_ = crypto;
}
CapsInfo generateCapsInfo(final DiscoInfo discoInfo) {
String serializedCaps = "";
List<DiscoInfo.Identity> identities = discoInfo.getIdentities();
Collections.sort(identities);
for (final DiscoInfo.Identity identity : identities) {
serializedCaps += identity.getCategory() + "/" + identity.getType()
+ "/" + identity.getLanguage() + "/" + identity.getName()
+ "<";
}
List<String> features = discoInfo.getFeatures();
Collections.sort(features);
for (final String feature : features) {
serializedCaps += feature + "<";
}
for (Form extension : discoInfo.getExtensions()) {
serializedCaps += extension.getFormType() + "<";
List<FormField> fields = extension.getFields();
Collections.sort(fields, compareFields);
for (FormField field : fields) {
if ("FORM_TYPE".equals(field.getName())) {
continue;
}
serializedCaps += field.getName() + "<";
List<String> values = field.getValues();
Collections.sort(values);
for (final String value : values) {
serializedCaps += value + "<";
}
}
}
String version = Base64.encode(crypto_ .getSHA1Hash(new ByteArray(serializedCaps)));
return new CapsInfo(node_, version, "sha-1");
}
}
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