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Commit b553179

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DisplayName is always null. Replaced DisplayName by toString(), List by Map.
1 parent efb79d1 commit b553179

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-71
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2 files changed

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‎oci-list-instances-java/README.md

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Original file line numberDiff line numberDiff line change
@@ -5,7 +5,7 @@ API calls to OCI services using the [OCI Java SDK](https://docs.cloud.oracle.com
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It returns a list of all instances within the compartment that calls the function.
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The function calls the following OCI Java SDK classes:
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* [InstancePrincipalsAuthenticationDetailsProvider](https://docs.cloud.oracle.com/iaas/tools/java/latest/com/oracle/bmc/auth/InstancePrincipalsAuthenticationDetailsProvider.html) to authenticate
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* [ResourcePrincipalAuthenticationDetailsProvider](https://docs.cloud.oracle.com/en-us/iaas/tools/java/1.12.6/com/oracle/bmc/auth/ResourcePrincipalAuthenticationDetailsProvider.html) to authenticate
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* [ComputeClient](https://docs.cloud.oracle.com/iaas/tools/java/latest/com/oracle/bmc/core/ComputeClient.html) to interact with Compute
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As you make your way through this tutorial, look out for this icon ![user input icon](../images/userinput.png).
@@ -123,4 +123,5 @@ e.g.
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```
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echo -n 'ocid1.compartment.oc1...2jn3htfoobar' | fn invoke myapp list-instances
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```
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Upon success, you should see the list of instances in your compartment appear on your terminal.
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Upon success, you should see a map of instances in your compartment appear on your terminal.
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Key is the OCID of the instance and value is a String representation of the Instance object.
Lines changed: 81 additions & 69 deletions
Original file line numberDiff line numberDiff line change
@@ -1,69 +1,81 @@
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/*
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** ComputeInstancesList version 1.0.
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**
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** Copyright (c) 2020 Oracle, Inc.
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** Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl.
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*/
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package com.example.fn;
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import com.oracle.bmc.auth.ResourcePrincipalAuthenticationDetailsProvider;
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import com.oracle.bmc.core.ComputeClient;
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import com.oracle.bmc.core.requests.ListInstancesRequest;
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import com.oracle.bmc.core.responses.ListInstancesResponse;
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import java.util.Collections;
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import java.util.List;
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import java.util.stream.Collectors;
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public class ComputeInstancesList {
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private ComputeClient computeClient = null;
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final ResourcePrincipalAuthenticationDetailsProvider provider
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= ResourcePrincipalAuthenticationDetailsProvider.builder().build();
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public ComputeInstancesList() {
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//print env vars in Functions container
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System.err.println("OCI_RESOURCE_PRINCIPAL_VERSION " + System.getenv("OCI_RESOURCE_PRINCIPAL_VERSION"));
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System.err.println("OCI_RESOURCE_PRINCIPAL_REGION " + System.getenv("OCI_RESOURCE_PRINCIPAL_REGION"));
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System.err.println("OCI_RESOURCE_PRINCIPAL_RPST " + System.getenv("OCI_RESOURCE_PRINCIPAL_RPST"));
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System.err.println("OCI_RESOURCE_PRINCIPAL_PRIVATE_PEM " + System.getenv("OCI_RESOURCE_PRINCIPAL_PRIVATE_PEM"));
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try {
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computeClient = new ComputeClient(provider);
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} catch (Throwable ex) {
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System.err.println("Failed to instantiate ComputeClient - " + ex.getMessage());
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}
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}
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public List<String> handle(String compID) {
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if (computeClient == null) {
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System.err.println("There was a problem creating the ComputeClient object. Please check logs...");
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return Collections.emptyList();
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}
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List<String> names = null;
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try {
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System.err.println("Searching for compute instances in compartment " + compID);
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ListInstancesRequest request = ListInstancesRequest.builder().compartmentId(compID).build();
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ListInstancesResponse instances = computeClient.listInstances(request);
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names = instances.getItems().stream()
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.map((instance) -> instance.getDisplayName())
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.collect(Collectors.toList());
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System.err.println("No. of compute instances found in compartment " + names.size());
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} catch (Throwable e) {
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System.err.println("ERROR searching for compute instances in compartment " + compID);
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}
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return names;
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}
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}
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/*
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** ComputeInstancesList version 1.0.
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**
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** Copyright (c) 2020 Oracle, Inc.
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** Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl.
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*/
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package com.example.fn;
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import com.oracle.bmc.auth.ResourcePrincipalAuthenticationDetailsProvider;
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import com.oracle.bmc.core.ComputeClient;
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import com.oracle.bmc.core.model.Instance;
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import com.oracle.bmc.core.requests.ListInstancesRequest;
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import com.oracle.bmc.core.responses.ListInstancesResponse;
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import java.util.Collections;
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import java.util.List;
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import java.util.Map;
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import java.util.stream.Collectors;
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public class ComputeInstancesList {
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private ComputeClient computeClient = null;
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final ResourcePrincipalAuthenticationDetailsProvider provider
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= ResourcePrincipalAuthenticationDetailsProvider.builder().build();
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public ComputeInstancesList() {
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//print env vars in Functions container
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System.err.println("OCI_RESOURCE_PRINCIPAL_VERSION " + System.getenv("OCI_RESOURCE_PRINCIPAL_VERSION"));
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System.err.println("OCI_RESOURCE_PRINCIPAL_REGION " + System.getenv("OCI_RESOURCE_PRINCIPAL_REGION"));
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System.err.println("OCI_RESOURCE_PRINCIPAL_RPST " + System.getenv("OCI_RESOURCE_PRINCIPAL_RPST"));
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System.err.println("OCI_RESOURCE_PRINCIPAL_PRIVATE_PEM " + System.getenv("OCI_RESOURCE_PRINCIPAL_PRIVATE_PEM"));
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try {
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computeClient = new ComputeClient(provider);
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} catch (Throwable ex) {
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System.err.println("Failed to instantiate ComputeClient - " + ex.getMessage());
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e.printStackTrace();
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}
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}
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public Map<String, String> handle(String compID) {
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Map<String, String> names = Collections.emptyMap();
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if (computeClient == null) {
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System.err.println("There was a problem creating the ComputeClient object. Please check logs...");
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return names;
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}
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try {
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System.err.println("Searching for compute instances in compartment " + compID);
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ListInstancesRequest request = ListInstancesRequest.builder().compartmentId(compID).build();
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System.err.println("ListInstancesRequest " + request);
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ListInstancesResponse instances = computeClient.listInstances(request);
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System.err.println("ListInstancesResponse " + instances);
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List<Instance> instanceList = instances.getItems();
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System.err.println("No. of compute instances found in compartment " + instanceList.size());
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names = instanceList.stream()
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// .collect(Collectors.toMap((instance) -> instance.getId(), (instance) -> instance.toString()));
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.collect(Collectors.toMap(Instance::getId, Instance::toString));
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System.err.println("Compute instances " + names);
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} catch (Throwable e) {
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System.err.println("ERROR searching for compute instances in compartment " + compID);
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System.err.println("e.getMessage() " + e.getMessage());
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e.printStackTrace();
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}
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return names;
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}
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}

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