Add excerpt AC and avoid rate-limiting for OpenLibrary content

OpenLibrary added rate-limiting (100 cover requests per 5 minutes)
for cover images requested by ISBN; using the OpenLibrary book
API to pull the list of direct cover URLs avoids the rate limit.

Also, add excerpt added content calls for OpenLibrary.

Signed-off-by: Dan Scott <dbs@coffeecode.net>
git-svn-id: svn://svn.open-ils.org/ILS/trunk@20354 dcc99617-32d9-48b4-a31d-7c20da2025e4

diff --git a/Open-ILS/src/perlmods/lib/OpenILS/WWW/AddedContent/OpenLibrary.pm b/Open-ILS/src/perlmods/lib/OpenILS/WWW/AddedContent/OpenLibrary.pm
index 41f8ee8..f607c32 100644 (file)
--- a/Open-ILS/src/perlmods/lib/OpenILS/WWW/AddedContent/OpenLibrary.pm
+++ b/Open-ILS/src/perlmods/lib/OpenILS/WWW/AddedContent/OpenLibrary.pm
@@ -101,6 +101,46 @@ sub excerpt_html {
     $self->send_html("<div class='ac_excerpts'>$excerpt_html</div>");
 }
 
+sub excerpt_html {
+    my( $self, $key ) = @_;
+    my $book_details_json = $self->fetch_details_response($key)->content();
+
+    $logger->debug("$key: $book_details_json");
+
+    my $excerpt_html;
+    
+    my $book_details = OpenSRF::Utils::JSON->JSON2perl($book_details_json);
+    my $book_key = (keys %$book_details)[0];
+
+    # We didn't find a matching book; short-circuit our response
+    if (!$book_key) {
+        $logger->debug("$key: no found book");
+        return 0;
+    }
+
+    my $first_sentence = $book_details->{$book_key}->{first_sentence};
+    if ($first_sentence) {
+        $excerpt_html .= "<div class='sentence1'>$first_sentence</div>\n";
+    }
+
+    my $excerpts_json = $book_details->{$book_key}->{excerpts};
+    if ($excerpts_json && scalar(@$excerpts_json)) {
+        # Load up excerpt text with comments in tooltip
+        foreach my $excerpt (@$excerpts_json) {
+            my $text = $excerpt->{text};
+            my $cmnt = $excerpt->{comment};
+            $excerpt_html .= "<div class='ac_excerpt' title='$text'>$cmnt</div>\n";
+        }
+    }
+
+    if (!$excerpt_html) {
+        return 0;
+    }
+
+    $logger->debug("$key: $excerpt_html");
+    $self->send_html("<div class='ac_excerpts'>$excerpt_html</div>");
+}
+
 =head1
 
 OpenLibrary returns a JSON hash of zero or more book responses matching our