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Read authentication rules in a separate transaction
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src/main/java/org/icatproject/core/manager/GateKeeperHelper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| package org.icatproject.core.manager; | ||
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| import java.util.HashMap; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Set; | ||
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| import jakarta.ejb.Stateless; | ||
| import jakarta.ejb.TransactionManagement; | ||
| import jakarta.ejb.TransactionManagementType; | ||
| import jakarta.persistence.EntityManager; | ||
| import jakarta.persistence.PersistenceContext; | ||
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| import org.icatproject.core.entity.PublicStep; | ||
| import org.icatproject.core.entity.Rule; | ||
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| /* | ||
| * This class contains methods that provide authorization rules from the | ||
| * database to the GateKeeper. They need to be run outside of the transaction | ||
| * that is active in GateKeeper, so that they cannot be affected by any changes | ||
| * made in that transaction. This is acheived by having them in a separate EJB | ||
| * with bean-managed transactions (these never use the transaction of the | ||
| * calling bean). | ||
| */ | ||
| @Stateless | ||
| @TransactionManagement(TransactionManagementType.BEAN) | ||
| public class GateKeeperHelper { | ||
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| @PersistenceContext(unitName = "icat") | ||
| private EntityManager gateKeeperManager; | ||
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| public List<String> getRules(String ruleQuery, String member, String bean, String attribute) { | ||
| return gateKeeperManager | ||
| .createNamedQuery(ruleQuery, String.class) | ||
| .setParameter("member", member) | ||
| .setParameter("bean", bean) | ||
| .setParameter("attribute", attribute) | ||
| .getResultList(); | ||
| } | ||
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| public List<String> getRules(String ruleQuery, String member, String bean) { | ||
| return gateKeeperManager | ||
| .createNamedQuery(ruleQuery, String.class) | ||
| .setParameter("member", member) | ||
| .setParameter("bean", bean) | ||
| .getResultList(); | ||
| } | ||
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| public Map<String, Set<String>> getPublicSteps() { | ||
| Map<String, Set<String>> publicSteps = new HashMap<>(); | ||
| List<PublicStep> steps = gateKeeperManager.createNamedQuery(PublicStep.GET_ALL_QUERY, PublicStep.class).getResultList(); | ||
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| for (PublicStep step : steps) { | ||
| Set<String> fieldNames = publicSteps.get(step.getOrigin()); | ||
| if (fieldNames == null) { | ||
| fieldNames = new HashSet<>(); | ||
| publicSteps.put(step.getOrigin(), fieldNames); | ||
| } | ||
| fieldNames.add(step.getField()); | ||
| } | ||
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| // return unmodifiable copy | ||
| publicSteps.replaceAll((k, v) -> Set.copyOf(v)); | ||
| return Map.copyOf(publicSteps); | ||
| } | ||
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| public Set<String> getPublicTables() { | ||
| List<String> tableNames = gateKeeperManager.createNamedQuery(Rule.PUBLIC_QUERY, String.class).getResultList(); | ||
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| // return unmodifiable copy | ||
| return Set.copyOf(tableNames); | ||
| } | ||
| } |