temp fix for policy integration

provider/search-gcp/src/main/java/org/opengroup/osdu/search/provider/gcp/di/GCPJwtClientProvider.java

+package org.opengroup.osdu.search.provider.gcp.di;
+
+import lombok.RequiredArgsConstructor;
+import org.opengroup.osdu.core.common.util.IServiceAccountJwtClient;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.beans.factory.config.AbstractFactoryBean;
+import org.springframework.stereotype.Component;
+//TODO temp fix for policy integration
+@Component
+@RequiredArgsConstructor
+public class GCPJwtClientProvider extends AbstractFactoryBean<IServiceAccountJwtClient> {
+
+    @Value("${GOOGLE_AUDIENCES}")
+    private String audience;
+
+    @Override
+    public Class<?> getObjectType() {
+        return GcpServiceAccountJwtClient.class;
+    }
+
+    @Override
+    protected IServiceAccountJwtClient createInstance() throws Exception {
+        GcpServiceAccountJwtClient serviceAccountJwtClient = new GcpServiceAccountJwtClient(audience);
+        return serviceAccountJwtClient;
+    }
+}

provider/search-gcp/src/main/java/org/opengroup/osdu/search/provider/gcp/di/GcpServiceAccountJwtClient.java

+package org.opengroup.osdu.search.provider.gcp.di;
+
+import com.google.auth.oauth2.AccessToken;
+import com.google.auth.oauth2.GoogleCredentials;
+import com.google.auth.oauth2.IdTokenCredentials;
+import com.google.auth.oauth2.IdTokenProvider;
+import java.io.IOException;
+import java.util.Objects;
+import org.apache.http.HttpStatus;
+import org.opengroup.osdu.core.common.model.http.AppException;
+import org.opengroup.osdu.core.common.util.IServiceAccountJwtClient;
+//TODO temp fix for policy integration 
+public class GcpServiceAccountJwtClient implements IServiceAccountJwtClient {
+
+    private IdTokenProvider idTokenProvider;
+
+    private String targetAudience;
+
+    public GcpServiceAccountJwtClient(IdTokenProvider idTokenProvider, String targetAudience) {
+        this.idTokenProvider = idTokenProvider;
+        this.targetAudience = targetAudience;
+    }
+
+    public GcpServiceAccountJwtClient(String targetAudience) {
+        this.targetAudience = targetAudience;
+    }
+
+    @Override
+    public String getIdToken(String serviceAccount) {
+        try {
+            if (Objects.isNull(this.idTokenProvider)) {
+                GoogleCredentials adcCreds = GoogleCredentials.getApplicationDefault();
+                if (adcCreds instanceof IdTokenProvider) {
+                    this.idTokenProvider = (IdTokenProvider) adcCreds;
+                } else {
+                    throw new AppException(HttpStatus.SC_INTERNAL_SERVER_ERROR, "Misconfigured credentials",
+                        "GcpServiceAccountJwtClient have misconfigured token provider");
+                }
+            }
+            IdTokenCredentials tokenCredential = IdTokenCredentials.newBuilder()
+                .setIdTokenProvider(this.idTokenProvider)
+                .setTargetAudience(this.targetAudience)
+                .build();
+            AccessToken accessToken = tokenCredential.refreshAccessToken();
+            return accessToken.getTokenValue();
+        } catch (IOException e) {
+            throw new AppException(HttpStatus.SC_INTERNAL_SERVER_ERROR, "Misconfigured credentials",
+                "GcpServiceAccountJwtClient have misconfigured token provider", e);
+        }
+    }
+}
+
+